Hello folks, it's my first time posting here at thia, but I'll try to contribute a little something to make it worth your time! 
While checking this thread for any updates on "Biohazard 2 Prereleased" recently I've noticed that some of you apparently stumbled upon my Biohazard 2 codes...
I have just decided to get back into Biohazard cheat hacking after taking a break to focus on other stuff and so I thought I could revive the hacking discussion by sharing some of my BH2 Beta (the bioflames one) findings which you might not have seen yet!

I was stupid enough to write the effects of all the codes I had created in German, because I never really thought about releasing them...
Well, I took my time to translate all of them into English to make them useful to a wider audience.
So here's all of the stuff I've found while using the psxrel debugger on the BH2 Beta:
_S PSXEXE
_G Biohazard 2 Beta
_C0 MAIN MENU MODIFIERS
_L 00000000 0000
_C0 Activate "Difficulty Select" Menu
_L 800193422 0001
_C0 Activate "Sound Option" Menu
_L 800193422 0002
_C0 Activate Invisible Menu
_L 80019342F 0001
_C0 INGAME MENU MODIFIERS
_L 00000000 0000
_C0 Show PC Menu
_L 800D1878 0007
_C0 Back To The Titlescreen
_L 800C24EF 0000
_C0 Normal Game
_L 800C24EF 0040
_C0 "You Died" Screen
_L 800C24EF 0041
_C0 Door Opening Sequence
_L 800C24EF 0042
_C0 Show Item Menu
_L 800C250C 0040
_L 800C250D 0080
_C0 Moviemode
_L 800C250C 0010
_L 800C250D 0001
_C0 No Sounds In Save Game Menu
_L 800CF1C4 0000
_C0 LEON MODIFIERS
_L 00000000 0000
_C0 LEON ACTIVATOR
_L 00000000 0000
_C0 Leon Disappears
_L 800C252C 0000
_C0 Leon Appears
_L 800C252C 0001
_C0 LEON AI MODS 1
_L 00000000 0000
_C0 Leon Normal
_L 800C2530 0000
_C0 Leon Normal 2
_L 800C2530 0001
_C0 Leon Dies (Animation Only)
_L 800C2530 0002
_C0 Leon Dies (Really)
_L 800C2530 0003
_C0 LEON AI MODS 2
_L 00000000 0000
_C0 Leon Equips Gun
_L 800C2531 0005
_C0 Leon Dies & Finds Ammo !?
_L 800C2531 0006
_C0 LEON CHARACTERMODEL HEIGHT
_L 00000000 0000
_C0 Leon Small
_L 800C270B 000F
_C0 Leon Normal
_L 800C270B 0010
_C0 Leon Large
_L 800C270B 0011
_C0 LEON COORDINATES
_L 00000000 0000
_C0 Leon Z Coordinates
_L 800CF15C 0000
_C0 LEON ANIMATIONS
_L 00000000 0000
_C0 Leon Walking
_L 800C2678 0000
_C0 Leon Running
_L 800C2678 0001
_C0 Leon Idle
_L 800C2678 0002
_C0 Leon Walking (Hurt)
_L 800C2678 0003
_C0 Leon Running (Hurt)
_L 800C2678 0004
_C0 Leon Idle (Hurt)
_L 800C2678 0005
_C0 Leon Walking (Hurt 2)
_L 800C2678 0006
_C0 Leon Running (Hurt 2)
_L 800C2678 0007
_C0 Leon Idle (Hurt 2)
_L 800C2678 0008
_C0 Leon Equipping Gun
_L 800C2678 0009
_C0 Leon Firing Gun
_L 800C2678 000A
_C0 Leon Pointing Gun
_L 800C2678 000B
_C0 Leon Firing Gun Upwards
_L 800C2678 000C
_C0 Leon Pointing Gun Upwards
_L 800C2678 000D
_C0 Leon Firing Gun Downwards
_L 800C2678 000E
_C0 Leon Pointing Gun Downwards
_L 800C2678 000F
_C0 Leon Reloading Weapon
_L 800C2678 0010
_C0 Leon Running
_L 800C2678 0011
_C0 Leon Running (Hurt)
_L 800C2678 0012
_C0 Leon Running (Superfast)
_L 800C2678 0013
_C0 Leon's Crazy !
_L 800C2678 0014
_C0 Leon's Crazy ! (Hurt)
_L 800C2678 0015
_C0 Leon's Crazy ! (Hurt) 2
_L 800C2678 0016
_C0 Leon Does Random Walking Animations
_L 800C2678 0017
_C0 Leon's Crazy ! 2
_L 800C2678 0018
_C0 Leon's Crazy ! (Running)
_L 800C2678 0019
_C0 Leon's Crazy ! (Running) 2
_L 800C2678 001A
_C0 Leon Does Random Walking Animations 2
_L 800C2678 0026
_C0 OTHER AI HACKS
_L 00000000 0000
_C0 FAKE LEON (JUMP 404 T JI ROUKA) AI 1
_L 00000000 0000
_C0 Fake Leon Hurt
_L 80125E8C 0008
_C0 FAKE LEON (JUMP 404 T JI ROUKA) AI 2
_L 00000000 0000
_C0 Fake Leon Does ??
_L 80125E8E 0010
_C0 LEON AI/ANIMATIONS
_L 00000000 0000
_C0 Leon AI 1
_L 800C2530 0000
_C0 Leon AI 2
_L 800C2531 0000
_C0 Leon AI 3
_L 800C2532 0000
_C0 Leon Animation 1
_L 800C2678 0000
_C0 Leon Animation 2
_L 800C2679 0000
_C0 Leon Animation 3
_L 800C267A 0000
_C0 CAMERA MODIFIERS
_L 00000000 0000
_C0 Camera Position 1
_L 800C2526 0000
_C0 Camera Position 2
_L 800C2526 0001
_C0 Camera Position 3
_L 800C2526 0002
_C0 Camera Position 4
_L 800C2526 0003
_C0 Camera Position 5
_L 800C2526 0004
_C0 Camera Position 6
_L 800C2526 0005
_C0 Earthquake Mode
_L 800C250C 00CC
_C0 Screen Width (Edit 1)
_L 800D19F9 0000
_C0 Screen Width (Edit 2)
_L 800D19F9 0060
_C0 Brightness (Dark)
_L 800D1A48 0000
_C0 Brightness (Bright)
_L 800D1A48 00FF
_C0 Activate Secret RPD Hall Camera View
_L 800C2526 000B
_C0 OBJECT MODIFIERS
_L 00000000 0000
_C0 Move 3D objects around
_L 800CF159 00F1
_C0 Stretched objects
_L 800CF167 0016
_C0 Set Kendo Gun Shop objects in front of background
_L 80011A6A4 0000
_C0 No items
_L 80011A6A6 0000
_C0 Diary (JUMP 10F 2F SAVE ROOM) Model Hack
_L 80011B538 005C
_C0 RANDOM MODS
_L 00000000 0000
_C0 Corrupt Backgrounds
_L 3019005B 0080
_C0 Hunk Mode
_L 800C6F18 000C
_L 3019005C 0048
_L 3019005D 0075
_L 3019005E 006E
_L 3019005F 006B
_L 30190068 0048
_L 30190069 0075
_L 3019006A 006E
_L 3019006B 006B
_L 30190074 0020
_L 30190075 0020
_L 30190076 0020
_L 30190077 0020
_L 30190078 0020
_L 30190079 0020
_L 30190080 0020
_L 30190081 0020
_L 30190082 0020
_L 30190083 0020
_L 30190084 0020
_L 30190085 0020
_L 30190087 0020
_C0 Select Scenario 3
_L 8000E3A4 0003
_C0 Deactivate Scenario Select Timer
_L 8000E3B4 0001
_C0 Footsteps SFX
_L 800C77C0 0001
_C0 Freeze Game
_L 800C2513 00FF
_C0 Continue Game
_L 800C2513 0000
_C0 Underwater Mode
_L 800C250C 0002
_C0 No Music
_L 800CF1C5 0000
_C0 Music On
_L 800CF1C5 0001
_C0 KENDO MODIFIERS
_L 00000000 0000
_C0 CURRENT EVENT
_L 00000000 0000
_C0 Intro Movie
_L 800C6F40 0010
_C0 Alive
_L 800C6F40 0020
_C0 Dead
_L 800C6F40 0030
_C0 KENDO ACTIVATOR
_L 00000000 0000
_C0 Activated
_L 80127228 0005
_C0 Deactivated
_L 80127228 0000
_C0 KENO AI MODIFIERS
_L 00000000 0000
_C0 Kendo AI 1
_L 8012722C 0000
_C0 Kendo AI 2
_L 8012722D 0000
_C0 Kendo AI 3
_L 8012722E 0000
_C0 Kendo Animations 1
_L 80127374 0000
_C0 Kendo Animations 2
_L 80127375 0000
_C0 Kendo Animations 3
_L 80127376 0000
_C0 No Animations
_L 801273F4 0020
_C0 CHARACTER MODEL MODS
_L 00000000 0000
_C0 Crippled Kendo
_L 8011EECE 0006
_C0 Flickering Textures
_L 8011EED1 00FF
_C0 Has hole in his belly
_L 8012D3CC 0000
_C0 KENDO COLLISIONS
_L 00000000 0000
_C0 Collisions On
_L 80127410 0000
_C0 Collisions Off (walk though him)
_L 80127410 0000
_C0 Length of his legs (after .)
_L 80127406 00F6
_C0 Length of his legs (before .)
_L 80127407 0010
_C0 Sunk into ground
_L 8011EED2 0000
_C0 ENEMY MODIFIERS
_L 00000000 0000
_C0 BURNING ZOMBIE (JUMP 11A TUIKA 4) MODIFIERS
_L 00000000 0000
_C0 Burning Zombie disappears
_L 8011D3F4 0000
_C0 Burning Zombie alive
_L 8011D3F4 0001
_C0 Burning Zombie dead
_L 8011D3F4 0003
_C0 Burning Zombie bleeding
_L 8011D3F7 0004
_C0 Burning Zombie invincible
_L 8011D3F7 0060
_C0 Burning Zombie constantly falling down
_L 8011D3F8 0001
_C0 Burning Zombie frozen
_L 8011D3F8 0004
_C0 Burning Zombie teleports himself behind Leon
_L 8011D3F9 0003
_C0 Burning Zombie dies
_L 8011D3FA 0000
_C0 BUS ZOMBIE MODIFIERS
_L 00000000 0000
_C0 Zombie inside Bus Normal
_L 3011BCC9 0000
_C0 Zombie inside Bus Normal 2
_L 3011BCC9 0001
_C0 Zombie inside Bus 1.5 Zombie Behavior !
_L 3011BCC9 0002
_C0 Zombie inside Bus Bites Leon
_L 3011BCC9 0003
_C0 Zombie inside Bus Standing still and waves head
_L 3011BCC9 0004
_C0 Zombie inside Standing still and waves head 2
_L 3011BCC9 0005
_C0 Zombie inside Bus Eating (On ground)
_L 3011BCC9 0006
_C0 Zombie inside Bus frozen
_L 3011BCC9 0007
_C0 Zombie inside Bus does squats
_L 3011BCC9 0008
_C0 Zombie inside Bus stays still for a while
_L 3011BCC9 0009
_C0 Zombie inside Bus stays still and mourns
_L 3011BCC9 0010
_C0 Zombie inside Bus Eating (Randomly jumps around like a frog)
_L 3011BCC9 0006
_C0 Zombie inside Bus Normal 3
_L 3011BCC9 0011
_C0 Zombie inside Bus Normal 4
_L 3011BCC9 0012
_C0 Zombie inside Bus Invisible
_L 3011BCC9 0013
_C0 Zombie inside Bus Invisible 2
_L 3011BCC9 0014
_C0 Zombie inside Bus makes drilling sounds
_L 3011BCC9 0015
_C0 P4 LAB ZOMBIE MODIFIERS
_L 00000000 0000
_C0 1st Zombie in P4 Laboratory Activator
_L 3011E664 0001
_C0 1st Zombie in P4 Laboratory AI
_L 3011E669 0000
_C0 CT SCAN ZOMBIE MODIFIERS
_L 00000000 0000
_C0 CT Scan Zombie is crazy
_L 801404B4 0000
_L 801404BC 0000
_C0 CT Scan Zombie wears ballet dress
_L 801404BD 0007
_L 801404BE 0009
_C0 CT Scan Zombie has no legs
_L 80140568 0000
_C0 ENEMY SPAWN MODIFIERS
_L 00000000 0000
_C0 Respawning Enemies
_L 800C6F68 0000
_L 800C6F6A 0000
_L 800C6F6C 0000
_L 800C6F6E 0000
_L 800C6F70 0000
_L 800C6F72 0000
_L 800C6F74 0000
_L 800C6F76 0000
_L 800C6F78 0000
_L 800C6F7A 0000
_L 800C6F7C 0000
_L 800C6F7E 0000
_L 800C6F80 0000
_L 800C6F82 0000
_L 800C6F84 0000
_L 800C6F86 0000
_L 800C6F88 0000
_L 800C6F8A 0000
_L 800C6F8C 0000
_L 800C6F8E 0000
_L 800C6F90 0000
_L 800C6F92 0000
_C0 No Enemies
_L 800C6F68 00FF
_L 800C6F6A 00FF
_L 800C6F6C 00FF
_L 800C6F6E 00FF
_L 800C6F70 00FF
_L 800C6F72 00FF
_L 800C6F74 00FF
_L 800C6F76 00FF
_L 800C6F78 00FF
_L 800C6F7A 00FF
_L 800C6F7C 00FF
_L 800C6F7E 00FF
_L 800C6F80 00FF
_L 800C6F82 00FF
_L 800C6F84 00FF
_L 800C6F86 00FF
_L 800C6F88 00FF
_L 800C6F8A 00FF
_L 800C6F8C 00FF
_L 800C6F8E 00FF
_L 800C6F90 00FF
_L 800C6F92 00FF
_C0 DEBUG MENU MODIFIERS
_L 00000000 0000
_C0 Unlock Debug Menu
_L 300105E8 00A4
_L 300105E9 0039
_L 300105F0 00A4
_L 300105F1 0039
_L 300105F4 00A4
_L 300105F5 0039
_L 300105F8 00A4
_L 300105F9 0039
_L 300105FC 00A4
_L 300105FD 0039
_L 30010600 00A4
_L 30010601 0039
_L 3008EEDC 0001
_L 3008EEF6 0001
_L 3008F716 0001
_C0 UPAS CUSTOM DEBUG MENU
_L 00000000 0000
_C0 Upaluppas Debug Menu 1
_L 30010551 0044
_L 30010552 0045
_L 30010553 0042
_L 30010554 0055
_L 30010555 0047
_L 30010556 0020
_L 30010557 004D
_L 30010558 0045
_L 30010559 004E
_L 3001055A 0055
_L 3001055B 0020
_L 3001055C 0032
_L 3001056C 0054
_L 3001056D 0045
_C0 Upaluppas Debug Menu 2
_L 3001056E 004C
_L 3001056F 0045
_L 30010570 0050
_L 30010571 004F
_L 30010572 0052
_L 30010573 0054
_L 30010574 003A
_L 30010575 0000
_L 30010576 0000
_L 30010577 0000
_L 30010578 0000
_L 30010579 0000
_L 3001057A 0000
_L 3001057B 0000
_L 3001057C 0052
_L 3001057D 004F
_L 3001057E 004F
_L 3001057F 004D
_C0 Upaluppas Debug Menu 3
_L 3001058E 0000
_L 3001058F 0000
_L 30010590 0000
_L 30010591 0000
_L 30010592 0000
_L 30010593 0000
_L 30010594 0000
_L 30010595 0000
_L 30010596 0000
_L 30010597 0000
_L 30010598 0000
_L 30010599 0000
_L 3001059A 0000
_L 3001059B 0000
_L 3001059C 0000
_L 3001059D 0000
_L 3001059E 0000
_L 3001059F 0000
_C0 Upaluppas Debug Menu 4
_L 300105A0 0000
_L 300105A1 0000
_L 300105A2 0000
_L 300105A3 0000
_L 300105A4 0000
_L 300105A5 0000
_L 300105A6 0000
_L 300105A7 0000
_L 300105A8 0000
_L 300105A9 0000
_L 300105AA 0000
_L 300105AB 0000
_L 300105AC 0000
_L 300105AD 0000
_L 300105AE 0000
_L 300105AF 0000
_C0 Upaluppas Debug Menu 5
_L 300105B0 0000
_L 300105B1 0000
_L 300105B2 0000
_L 300105B3 0000
_L 300105B4 0000
_L 300105B5 0000
_L 300105B6 0000
_L 300105B7 0000
_L 300105B8 0000
_L 300105B9 0000
_L 300105BA 0000
_L 300105BB 0000
_L 300105BC 0000
_L 300105BD 0000
_L 300105BE 0000
_L 300105BF 0000
_C0 Upaluppas Debug Menu 6
_L 300105C0 0000
_L 300105C1 0000
_L 300105C2 0000
_L 300105C3 0000
_L 300105C4 0000
_L 300105C5 0000
_L 300105C6 0000
_L 300105C7 0000
_L 300105C8 0000
_L 300105C9 0000
_L 300105CA 0000
_L 300105CB 0000
_L 300105CC 0000
_L 300105CD 0000
_L 300105CE 0000
_L 300105CF 0000
_C0 Upaluppas Debug Menu 7
_L 300105D0 0000
_L 300105D1 0000
_L 300105D2 0000
_L 300105D3 0000
_L 300105D4 0042
_L 300105D5 0059
_L 300105D6 0020
_L 300105D7 0055
_L 300105D8 0050
_L 300105D9 0041
_L 300105DA 004C
_L 300105DB 0055
_L 300105DC 0050
_L 300105DD 0050
_L 300105DE 0041
_C0 Upaluppas Debug Menu 8
_L 300105E0 0020
_L 300105E8 0036
_L 300105E9 003B
_L 300105F0 0036
_L 300105F1 003B
_L 300105F4 0036
_L 300105F5 003B
_L 300105F8 0036
_L 300105F9 003B
_L 300105FC 0036
_L 300105FD 003B
_L 30010600 0036
_L 30010601 003B
_L 300DA829 0001
_L 300DA851 0000
_C0 ANOTHER CUSTOM DEBUG MENU
_L 00000000 0000
_C0 Teleport Menu 1
_L 30010550 0054
_L 30010551 0045
_L 30010552 004C
_L 30010553 0045
_L 30010554 0050
_L 30010555 004F
_L 30010556 0052
_L 30010557 0054
_L 30010558 003A
_L 30010559 0000
_L 3001055A 0000
_L 3001055B 0000
_L 3001055C 0000
_L 3001055D 0000
_L 3001056C 0000
_L 3001056D 0000
_C0 Teleport Menu 2
_L 3001056E 0000
_L 3001056F 0000
_L 30010570 0000
_L 30010571 0000
_L 30010572 0000
_L 30010573 0000
_L 30010574 0000
_L 30010575 0000
_L 30010576 0000
_L 30010577 0000
_L 30010578 0000
_L 30010579 0000
_L 3001057A 0000
_L 3001057B 0000
_L 3001057C 0052
_L 3001057D 004F
_L 3001057E 004F
_L 3001057F 004D
_C0 Teleport Menu 3
_L 3001058E 0000
_L 3001058F 0000
_L 30010590 0000
_L 30010591 0000
_L 30010592 0000
_L 30010593 0000
_L 30010594 0000
_L 30010595 0000
_L 30010596 0000
_L 30010597 0000
_L 30010598 0000
_L 30010599 0000
_L 3001059A 0000
_L 3001059B 0000
_L 3001059C 0000
_L 3001059D 0000
_L 3001059E 0000
_L 3001059F 0000
_C0 Teleport Menu 4
_L 300105A0 0000
_L 300105A1 0000
_L 300105A2 0000
_L 300105A3 0000
_L 300105A4 0000
_L 300105A5 0000
_L 300105A6 0000
_L 300105A7 0000
_L 300105A8 0000
_L 300105A9 0000
_L 300105AA 0000
_L 300105AB 0000
_L 300105AC 0000
_L 300105AD 0000
_L 300105AE 0000
_L 300105AF 0000
_L 30010560 0000
_L 30010561 0000
_L 30010562 0000
_L 30010563 0000
_L 30010568 0000
_L 30010569 0000
_L 3001056A 0000
_C0 Teleport Menu 5
_L 300105B0 0000
_L 300105B1 0000
_L 300105B2 0000
_L 300105B3 0000
_L 300105B4 0000
_L 300105B5 0000
_L 300105B6 0000
_L 300105B7 0000
_L 300105B8 0000
_L 300105B9 0000
_L 300105BA 0000
_L 300105BB 0000
_L 300105BC 0000
_L 300105BD 0000
_L 300105BE 0000
_L 300105BF 0000
_C0 Teleport Menu 6
_L 300105C0 0000
_L 300105C1 0000
_L 300105C2 0000
_L 300105C3 0000
_L 300105C4 0000
_L 300105C5 0000
_L 300105C6 0000
_L 300105C7 0000
_L 300105C8 0000
_L 300105C9 0000
_L 300105CA 0000
_L 300105CB 0000
_L 300105CC 0000
_L 300105CD 0000
_L 300105CE 0000
_L 300105CF 0000
_C0 Teleport Menu 7
_L 300105D0 0000
_L 300105D1 0000
_L 300105D2 0000
_L 300105D3 0000
_L 300105D4 0000
_L 300105D5 0000
_L 300105D6 0000
_L 300105D7 0000
_L 300105D8 0000
_L 300105D9 0000
_L 300105DA 0000
_L 300105DB 0000
_L 300105DC 0000
_L 300105DD 0000
_L 300105DE 0000
_C0 Teleport Menu 8
_L 300105E0 0020
_L 300105E8 0036
_L 300105E9 003B
_L 300105F0 0036
_L 300105F1 003B
_L 300105F4 0036
_L 300105F5 003B
_L 300105F8 0036
_L 300105F9 003B
_L 300105FC 0036
_L 300105FD 003B
_L 30010600 0036
_L 30010601 003B
_L 300DA829 0001
_L 300DA852 0030
_L 3008EEDC 0001
_L 3008EEF6 0001
_L 3008F716 0001
_C0 DEBUG MENU MODS 2
_L 00000000 0000
_C0 Game does not freeze while Debug Menu is active
_L 800C24EC 0000
_C0 Show Debug Menu
_L 300DA828 0001
_C0 Hide Debug Menu
_L 300DA828 0000
_C0 Select Jump Option
_L 300DA829 0001
_C0 Set Room List to 300
_L 300DA82A 0002
_C0 Set Room List to 800
_L 300DA82A 0007
_C0 Set Room List to 900
_L 300DA82A 0008
_C0 Set Room List to 1000
_L 300DA82A 0009
_C0 No Window
_L 300DA851 0000
_C0 Left/Right Window Position
_L 300DA84C 0020
_C0 Up/Down Window Position
_L 300DA84E 0048
_C0 Up/Down Window Size
_L 300DA852 0060
_C0 RPD Computer Menu
_L 30010804 00EC
_L 30010805 0056
_L 30010806 0002
They are all in CWCHEAT format for use with an EBOOT on the PSP.
Anyways, you should have no trouble with converting them to more generic formats if you need to do so!
Here's some debug menu related stuff:

Modify Debug Menu Options:
_C0 Debug Menu Option 1
_L 300105E8 00XX
_L 300105E9 00YY
_C0 Debug Menu Option 2
_L 300105EC 00XX
_L 300105ED 00YY
_C0 Debug Menu Option 3
_L 300105F0 00XX
_L 300105F1 00YY
_C0 Debug Menu Option 4
_L 300105F4 00XX
_L 300105F5 00YY
_C0 Debug Menu Option 5
_L 300105F8 00XX
_L 300105F9 00YY
_C0 Debug Menu Option 6
_L 300105FC 00XX
_L 300105FD 00YY
_C0 Debug Menu Option 7
_L 30010600 00XX
_L 30010601 00YY
Replace XX/YY with to get the desired effect:
Nothing happens:
XX = 10
YY = 3B
Can't choose anything, cursor always remains on the first option:
XX = 3B
YY = 36
Freeze without menu:
XX = A4
YY = 35
JUMP with Square and can choose ROOM:
XX = A4
YY = 36
Scrolls backwards through the rooms (automatically):
XX = A4
YY = 37
Can only scroll backwards through rooms:
XX = A4
YY = 38
"Activate" disabled options with Square:
XX = A4
YY = 39
Teleport with Square but can't choose room:
XX = A4
YY = 3A
Freeze with menu:
XX = A4
YY = 3B
Debug Menu Graphical Mods:
_C0 Debug Menu Graphics
_L 30010804 00XX
_L 30010805 00YY
_L 30010806 00ZZ
Replace XX/YY/ZZ with to get the desired effect:
Normal:
XX = 24
YY = FD
ZZ = 02
Blue Letters:
XX = 2C
YY = FD
ZZ = 02
Numbers go crazy:
XX = 1C
YY = FD
ZZ = 02
Timer goes crazy:
XX = A8
YY = FF
ZZ = 02
Numbers go crazy:
XX = EC
YY = FC
ZZ = 02
Hexadecimal Timer (Small Letters):
XX = 38
YY = FF
ZZ = 02
Hexadecimal Timer (Large Letters):
XX = 40
YY = FF
ZZ = 02
RPD PC Menu:
XX = EC
YY = 56
ZZ = 02
Standby (Black Screen):
XX = D0
YY = 55
ZZ = 02
Empty Debug Menu:
XX = 84
YY = 56
ZZ = 02
Empty Debug Menu:
XX = B4
YY = 56
ZZ = 02
Reload Current Room:
XX = 4C
YY = 53
ZZ = 02
Here are a few debug feature activators:
_C0 DEBUG ACTIVATORS
_L 00000000 0000
_C0 Debug Menu ON
_L 300C24EE 0040
_C0 Debug Menu OFF
_L 300C24EE 0000
_C0 Weapon Mugen ON
_L 300C6DB8 00FF
_L 300C6DB9 00FF
_L 300C6DBA 00FF
_L 300C6DBB 00FF
_C0 Weapon Mugen OFF
_L 300C6DB8 0000
_L 300C6DB9 0020
_L 300C6DBA 0004
_L 300C6DBB 0000
_C0 Map Debug ON
_L 300C6F08 0001
_C0 Map Debug OFF
_L 300C6F08 0000
Have fun with them!
And stay tuned for updates!
Edit:
Looks like I've missed some codes while translating them...
I've corrected this now!
Edit2:
Just added some debug menu modifiers!
Edit3:
A few new codes have been added!

While checking this thread for any updates on "Biohazard 2 Prereleased" recently I've noticed that some of you apparently stumbled upon my Biohazard 2 codes...
I have just decided to get back into Biohazard cheat hacking after taking a break to focus on other stuff and so I thought I could revive the hacking discussion by sharing some of my BH2 Beta (the bioflames one) findings which you might not have seen yet!

I was stupid enough to write the effects of all the codes I had created in German, because I never really thought about releasing them...
Well, I took my time to translate all of them into English to make them useful to a wider audience.
So here's all of the stuff I've found while using the psxrel debugger on the BH2 Beta:
_S PSXEXE
_G Biohazard 2 Beta
_C0 MAIN MENU MODIFIERS
_L 00000000 0000
_C0 Activate "Difficulty Select" Menu
_L 800193422 0001
_C0 Activate "Sound Option" Menu
_L 800193422 0002
_C0 Activate Invisible Menu
_L 80019342F 0001
_C0 INGAME MENU MODIFIERS
_L 00000000 0000
_C0 Show PC Menu
_L 800D1878 0007
_C0 Back To The Titlescreen
_L 800C24EF 0000
_C0 Normal Game
_L 800C24EF 0040
_C0 "You Died" Screen
_L 800C24EF 0041
_C0 Door Opening Sequence
_L 800C24EF 0042
_C0 Show Item Menu
_L 800C250C 0040
_L 800C250D 0080
_C0 Moviemode
_L 800C250C 0010
_L 800C250D 0001
_C0 No Sounds In Save Game Menu
_L 800CF1C4 0000
_C0 LEON MODIFIERS
_L 00000000 0000
_C0 LEON ACTIVATOR
_L 00000000 0000
_C0 Leon Disappears
_L 800C252C 0000
_C0 Leon Appears
_L 800C252C 0001
_C0 LEON AI MODS 1
_L 00000000 0000
_C0 Leon Normal
_L 800C2530 0000
_C0 Leon Normal 2
_L 800C2530 0001
_C0 Leon Dies (Animation Only)
_L 800C2530 0002
_C0 Leon Dies (Really)
_L 800C2530 0003
_C0 LEON AI MODS 2
_L 00000000 0000
_C0 Leon Equips Gun
_L 800C2531 0005
_C0 Leon Dies & Finds Ammo !?
_L 800C2531 0006
_C0 LEON CHARACTERMODEL HEIGHT
_L 00000000 0000
_C0 Leon Small
_L 800C270B 000F
_C0 Leon Normal
_L 800C270B 0010
_C0 Leon Large
_L 800C270B 0011
_C0 LEON COORDINATES
_L 00000000 0000
_C0 Leon Z Coordinates
_L 800CF15C 0000
_C0 LEON ANIMATIONS
_L 00000000 0000
_C0 Leon Walking
_L 800C2678 0000
_C0 Leon Running
_L 800C2678 0001
_C0 Leon Idle
_L 800C2678 0002
_C0 Leon Walking (Hurt)
_L 800C2678 0003
_C0 Leon Running (Hurt)
_L 800C2678 0004
_C0 Leon Idle (Hurt)
_L 800C2678 0005
_C0 Leon Walking (Hurt 2)
_L 800C2678 0006
_C0 Leon Running (Hurt 2)
_L 800C2678 0007
_C0 Leon Idle (Hurt 2)
_L 800C2678 0008
_C0 Leon Equipping Gun
_L 800C2678 0009
_C0 Leon Firing Gun
_L 800C2678 000A
_C0 Leon Pointing Gun
_L 800C2678 000B
_C0 Leon Firing Gun Upwards
_L 800C2678 000C
_C0 Leon Pointing Gun Upwards
_L 800C2678 000D
_C0 Leon Firing Gun Downwards
_L 800C2678 000E
_C0 Leon Pointing Gun Downwards
_L 800C2678 000F
_C0 Leon Reloading Weapon
_L 800C2678 0010
_C0 Leon Running
_L 800C2678 0011
_C0 Leon Running (Hurt)
_L 800C2678 0012
_C0 Leon Running (Superfast)
_L 800C2678 0013
_C0 Leon's Crazy !
_L 800C2678 0014
_C0 Leon's Crazy ! (Hurt)
_L 800C2678 0015
_C0 Leon's Crazy ! (Hurt) 2
_L 800C2678 0016
_C0 Leon Does Random Walking Animations
_L 800C2678 0017
_C0 Leon's Crazy ! 2
_L 800C2678 0018
_C0 Leon's Crazy ! (Running)
_L 800C2678 0019
_C0 Leon's Crazy ! (Running) 2
_L 800C2678 001A
_C0 Leon Does Random Walking Animations 2
_L 800C2678 0026
_C0 OTHER AI HACKS
_L 00000000 0000
_C0 FAKE LEON (JUMP 404 T JI ROUKA) AI 1
_L 00000000 0000
_C0 Fake Leon Hurt
_L 80125E8C 0008
_C0 FAKE LEON (JUMP 404 T JI ROUKA) AI 2
_L 00000000 0000
_C0 Fake Leon Does ??
_L 80125E8E 0010
_C0 LEON AI/ANIMATIONS
_L 00000000 0000
_C0 Leon AI 1
_L 800C2530 0000
_C0 Leon AI 2
_L 800C2531 0000
_C0 Leon AI 3
_L 800C2532 0000
_C0 Leon Animation 1
_L 800C2678 0000
_C0 Leon Animation 2
_L 800C2679 0000
_C0 Leon Animation 3
_L 800C267A 0000
_C0 CAMERA MODIFIERS
_L 00000000 0000
_C0 Camera Position 1
_L 800C2526 0000
_C0 Camera Position 2
_L 800C2526 0001
_C0 Camera Position 3
_L 800C2526 0002
_C0 Camera Position 4
_L 800C2526 0003
_C0 Camera Position 5
_L 800C2526 0004
_C0 Camera Position 6
_L 800C2526 0005
_C0 Earthquake Mode
_L 800C250C 00CC
_C0 Screen Width (Edit 1)
_L 800D19F9 0000
_C0 Screen Width (Edit 2)
_L 800D19F9 0060
_C0 Brightness (Dark)
_L 800D1A48 0000
_C0 Brightness (Bright)
_L 800D1A48 00FF
_C0 Activate Secret RPD Hall Camera View
_L 800C2526 000B
_C0 OBJECT MODIFIERS
_L 00000000 0000
_C0 Move 3D objects around
_L 800CF159 00F1
_C0 Stretched objects
_L 800CF167 0016
_C0 Set Kendo Gun Shop objects in front of background
_L 80011A6A4 0000
_C0 No items
_L 80011A6A6 0000
_C0 Diary (JUMP 10F 2F SAVE ROOM) Model Hack
_L 80011B538 005C
_C0 RANDOM MODS
_L 00000000 0000
_C0 Corrupt Backgrounds
_L 3019005B 0080
_C0 Hunk Mode
_L 800C6F18 000C
_L 3019005C 0048
_L 3019005D 0075
_L 3019005E 006E
_L 3019005F 006B
_L 30190068 0048
_L 30190069 0075
_L 3019006A 006E
_L 3019006B 006B
_L 30190074 0020
_L 30190075 0020
_L 30190076 0020
_L 30190077 0020
_L 30190078 0020
_L 30190079 0020
_L 30190080 0020
_L 30190081 0020
_L 30190082 0020
_L 30190083 0020
_L 30190084 0020
_L 30190085 0020
_L 30190087 0020
_C0 Select Scenario 3
_L 8000E3A4 0003
_C0 Deactivate Scenario Select Timer
_L 8000E3B4 0001
_C0 Footsteps SFX
_L 800C77C0 0001
_C0 Freeze Game
_L 800C2513 00FF
_C0 Continue Game
_L 800C2513 0000
_C0 Underwater Mode
_L 800C250C 0002
_C0 No Music
_L 800CF1C5 0000
_C0 Music On
_L 800CF1C5 0001
_C0 KENDO MODIFIERS
_L 00000000 0000
_C0 CURRENT EVENT
_L 00000000 0000
_C0 Intro Movie
_L 800C6F40 0010
_C0 Alive
_L 800C6F40 0020
_C0 Dead
_L 800C6F40 0030
_C0 KENDO ACTIVATOR
_L 00000000 0000
_C0 Activated
_L 80127228 0005
_C0 Deactivated
_L 80127228 0000
_C0 KENO AI MODIFIERS
_L 00000000 0000
_C0 Kendo AI 1
_L 8012722C 0000
_C0 Kendo AI 2
_L 8012722D 0000
_C0 Kendo AI 3
_L 8012722E 0000
_C0 Kendo Animations 1
_L 80127374 0000
_C0 Kendo Animations 2
_L 80127375 0000
_C0 Kendo Animations 3
_L 80127376 0000
_C0 No Animations
_L 801273F4 0020
_C0 CHARACTER MODEL MODS
_L 00000000 0000
_C0 Crippled Kendo
_L 8011EECE 0006
_C0 Flickering Textures
_L 8011EED1 00FF
_C0 Has hole in his belly
_L 8012D3CC 0000
_C0 KENDO COLLISIONS
_L 00000000 0000
_C0 Collisions On
_L 80127410 0000
_C0 Collisions Off (walk though him)
_L 80127410 0000
_C0 Length of his legs (after .)
_L 80127406 00F6
_C0 Length of his legs (before .)
_L 80127407 0010
_C0 Sunk into ground
_L 8011EED2 0000
_C0 ENEMY MODIFIERS
_L 00000000 0000
_C0 BURNING ZOMBIE (JUMP 11A TUIKA 4) MODIFIERS
_L 00000000 0000
_C0 Burning Zombie disappears
_L 8011D3F4 0000
_C0 Burning Zombie alive
_L 8011D3F4 0001
_C0 Burning Zombie dead
_L 8011D3F4 0003
_C0 Burning Zombie bleeding
_L 8011D3F7 0004
_C0 Burning Zombie invincible
_L 8011D3F7 0060
_C0 Burning Zombie constantly falling down
_L 8011D3F8 0001
_C0 Burning Zombie frozen
_L 8011D3F8 0004
_C0 Burning Zombie teleports himself behind Leon
_L 8011D3F9 0003
_C0 Burning Zombie dies
_L 8011D3FA 0000
_C0 BUS ZOMBIE MODIFIERS
_L 00000000 0000
_C0 Zombie inside Bus Normal
_L 3011BCC9 0000
_C0 Zombie inside Bus Normal 2
_L 3011BCC9 0001
_C0 Zombie inside Bus 1.5 Zombie Behavior !
_L 3011BCC9 0002
_C0 Zombie inside Bus Bites Leon
_L 3011BCC9 0003
_C0 Zombie inside Bus Standing still and waves head
_L 3011BCC9 0004
_C0 Zombie inside Standing still and waves head 2
_L 3011BCC9 0005
_C0 Zombie inside Bus Eating (On ground)
_L 3011BCC9 0006
_C0 Zombie inside Bus frozen
_L 3011BCC9 0007
_C0 Zombie inside Bus does squats
_L 3011BCC9 0008
_C0 Zombie inside Bus stays still for a while
_L 3011BCC9 0009
_C0 Zombie inside Bus stays still and mourns
_L 3011BCC9 0010
_C0 Zombie inside Bus Eating (Randomly jumps around like a frog)
_L 3011BCC9 0006
_C0 Zombie inside Bus Normal 3
_L 3011BCC9 0011
_C0 Zombie inside Bus Normal 4
_L 3011BCC9 0012
_C0 Zombie inside Bus Invisible
_L 3011BCC9 0013
_C0 Zombie inside Bus Invisible 2
_L 3011BCC9 0014
_C0 Zombie inside Bus makes drilling sounds
_L 3011BCC9 0015
_C0 P4 LAB ZOMBIE MODIFIERS
_L 00000000 0000
_C0 1st Zombie in P4 Laboratory Activator
_L 3011E664 0001
_C0 1st Zombie in P4 Laboratory AI
_L 3011E669 0000
_C0 CT SCAN ZOMBIE MODIFIERS
_L 00000000 0000
_C0 CT Scan Zombie is crazy
_L 801404B4 0000
_L 801404BC 0000
_C0 CT Scan Zombie wears ballet dress
_L 801404BD 0007
_L 801404BE 0009
_C0 CT Scan Zombie has no legs
_L 80140568 0000
_C0 ENEMY SPAWN MODIFIERS
_L 00000000 0000
_C0 Respawning Enemies
_L 800C6F68 0000
_L 800C6F6A 0000
_L 800C6F6C 0000
_L 800C6F6E 0000
_L 800C6F70 0000
_L 800C6F72 0000
_L 800C6F74 0000
_L 800C6F76 0000
_L 800C6F78 0000
_L 800C6F7A 0000
_L 800C6F7C 0000
_L 800C6F7E 0000
_L 800C6F80 0000
_L 800C6F82 0000
_L 800C6F84 0000
_L 800C6F86 0000
_L 800C6F88 0000
_L 800C6F8A 0000
_L 800C6F8C 0000
_L 800C6F8E 0000
_L 800C6F90 0000
_L 800C6F92 0000
_C0 No Enemies
_L 800C6F68 00FF
_L 800C6F6A 00FF
_L 800C6F6C 00FF
_L 800C6F6E 00FF
_L 800C6F70 00FF
_L 800C6F72 00FF
_L 800C6F74 00FF
_L 800C6F76 00FF
_L 800C6F78 00FF
_L 800C6F7A 00FF
_L 800C6F7C 00FF
_L 800C6F7E 00FF
_L 800C6F80 00FF
_L 800C6F82 00FF
_L 800C6F84 00FF
_L 800C6F86 00FF
_L 800C6F88 00FF
_L 800C6F8A 00FF
_L 800C6F8C 00FF
_L 800C6F8E 00FF
_L 800C6F90 00FF
_L 800C6F92 00FF
_C0 DEBUG MENU MODIFIERS
_L 00000000 0000
_C0 Unlock Debug Menu
_L 300105E8 00A4
_L 300105E9 0039
_L 300105F0 00A4
_L 300105F1 0039
_L 300105F4 00A4
_L 300105F5 0039
_L 300105F8 00A4
_L 300105F9 0039
_L 300105FC 00A4
_L 300105FD 0039
_L 30010600 00A4
_L 30010601 0039
_L 3008EEDC 0001
_L 3008EEF6 0001
_L 3008F716 0001
_C0 UPAS CUSTOM DEBUG MENU
_L 00000000 0000
_C0 Upaluppas Debug Menu 1
_L 30010551 0044
_L 30010552 0045
_L 30010553 0042
_L 30010554 0055
_L 30010555 0047
_L 30010556 0020
_L 30010557 004D
_L 30010558 0045
_L 30010559 004E
_L 3001055A 0055
_L 3001055B 0020
_L 3001055C 0032
_L 3001056C 0054
_L 3001056D 0045
_C0 Upaluppas Debug Menu 2
_L 3001056E 004C
_L 3001056F 0045
_L 30010570 0050
_L 30010571 004F
_L 30010572 0052
_L 30010573 0054
_L 30010574 003A
_L 30010575 0000
_L 30010576 0000
_L 30010577 0000
_L 30010578 0000
_L 30010579 0000
_L 3001057A 0000
_L 3001057B 0000
_L 3001057C 0052
_L 3001057D 004F
_L 3001057E 004F
_L 3001057F 004D
_C0 Upaluppas Debug Menu 3
_L 3001058E 0000
_L 3001058F 0000
_L 30010590 0000
_L 30010591 0000
_L 30010592 0000
_L 30010593 0000
_L 30010594 0000
_L 30010595 0000
_L 30010596 0000
_L 30010597 0000
_L 30010598 0000
_L 30010599 0000
_L 3001059A 0000
_L 3001059B 0000
_L 3001059C 0000
_L 3001059D 0000
_L 3001059E 0000
_L 3001059F 0000
_C0 Upaluppas Debug Menu 4
_L 300105A0 0000
_L 300105A1 0000
_L 300105A2 0000
_L 300105A3 0000
_L 300105A4 0000
_L 300105A5 0000
_L 300105A6 0000
_L 300105A7 0000
_L 300105A8 0000
_L 300105A9 0000
_L 300105AA 0000
_L 300105AB 0000
_L 300105AC 0000
_L 300105AD 0000
_L 300105AE 0000
_L 300105AF 0000
_C0 Upaluppas Debug Menu 5
_L 300105B0 0000
_L 300105B1 0000
_L 300105B2 0000
_L 300105B3 0000
_L 300105B4 0000
_L 300105B5 0000
_L 300105B6 0000
_L 300105B7 0000
_L 300105B8 0000
_L 300105B9 0000
_L 300105BA 0000
_L 300105BB 0000
_L 300105BC 0000
_L 300105BD 0000
_L 300105BE 0000
_L 300105BF 0000
_C0 Upaluppas Debug Menu 6
_L 300105C0 0000
_L 300105C1 0000
_L 300105C2 0000
_L 300105C3 0000
_L 300105C4 0000
_L 300105C5 0000
_L 300105C6 0000
_L 300105C7 0000
_L 300105C8 0000
_L 300105C9 0000
_L 300105CA 0000
_L 300105CB 0000
_L 300105CC 0000
_L 300105CD 0000
_L 300105CE 0000
_L 300105CF 0000
_C0 Upaluppas Debug Menu 7
_L 300105D0 0000
_L 300105D1 0000
_L 300105D2 0000
_L 300105D3 0000
_L 300105D4 0042
_L 300105D5 0059
_L 300105D6 0020
_L 300105D7 0055
_L 300105D8 0050
_L 300105D9 0041
_L 300105DA 004C
_L 300105DB 0055
_L 300105DC 0050
_L 300105DD 0050
_L 300105DE 0041
_C0 Upaluppas Debug Menu 8
_L 300105E0 0020
_L 300105E8 0036
_L 300105E9 003B
_L 300105F0 0036
_L 300105F1 003B
_L 300105F4 0036
_L 300105F5 003B
_L 300105F8 0036
_L 300105F9 003B
_L 300105FC 0036
_L 300105FD 003B
_L 30010600 0036
_L 30010601 003B
_L 300DA829 0001
_L 300DA851 0000
_C0 ANOTHER CUSTOM DEBUG MENU
_L 00000000 0000
_C0 Teleport Menu 1
_L 30010550 0054
_L 30010551 0045
_L 30010552 004C
_L 30010553 0045
_L 30010554 0050
_L 30010555 004F
_L 30010556 0052
_L 30010557 0054
_L 30010558 003A
_L 30010559 0000
_L 3001055A 0000
_L 3001055B 0000
_L 3001055C 0000
_L 3001055D 0000
_L 3001056C 0000
_L 3001056D 0000
_C0 Teleport Menu 2
_L 3001056E 0000
_L 3001056F 0000
_L 30010570 0000
_L 30010571 0000
_L 30010572 0000
_L 30010573 0000
_L 30010574 0000
_L 30010575 0000
_L 30010576 0000
_L 30010577 0000
_L 30010578 0000
_L 30010579 0000
_L 3001057A 0000
_L 3001057B 0000
_L 3001057C 0052
_L 3001057D 004F
_L 3001057E 004F
_L 3001057F 004D
_C0 Teleport Menu 3
_L 3001058E 0000
_L 3001058F 0000
_L 30010590 0000
_L 30010591 0000
_L 30010592 0000
_L 30010593 0000
_L 30010594 0000
_L 30010595 0000
_L 30010596 0000
_L 30010597 0000
_L 30010598 0000
_L 30010599 0000
_L 3001059A 0000
_L 3001059B 0000
_L 3001059C 0000
_L 3001059D 0000
_L 3001059E 0000
_L 3001059F 0000
_C0 Teleport Menu 4
_L 300105A0 0000
_L 300105A1 0000
_L 300105A2 0000
_L 300105A3 0000
_L 300105A4 0000
_L 300105A5 0000
_L 300105A6 0000
_L 300105A7 0000
_L 300105A8 0000
_L 300105A9 0000
_L 300105AA 0000
_L 300105AB 0000
_L 300105AC 0000
_L 300105AD 0000
_L 300105AE 0000
_L 300105AF 0000
_L 30010560 0000
_L 30010561 0000
_L 30010562 0000
_L 30010563 0000
_L 30010568 0000
_L 30010569 0000
_L 3001056A 0000
_C0 Teleport Menu 5
_L 300105B0 0000
_L 300105B1 0000
_L 300105B2 0000
_L 300105B3 0000
_L 300105B4 0000
_L 300105B5 0000
_L 300105B6 0000
_L 300105B7 0000
_L 300105B8 0000
_L 300105B9 0000
_L 300105BA 0000
_L 300105BB 0000
_L 300105BC 0000
_L 300105BD 0000
_L 300105BE 0000
_L 300105BF 0000
_C0 Teleport Menu 6
_L 300105C0 0000
_L 300105C1 0000
_L 300105C2 0000
_L 300105C3 0000
_L 300105C4 0000
_L 300105C5 0000
_L 300105C6 0000
_L 300105C7 0000
_L 300105C8 0000
_L 300105C9 0000
_L 300105CA 0000
_L 300105CB 0000
_L 300105CC 0000
_L 300105CD 0000
_L 300105CE 0000
_L 300105CF 0000
_C0 Teleport Menu 7
_L 300105D0 0000
_L 300105D1 0000
_L 300105D2 0000
_L 300105D3 0000
_L 300105D4 0000
_L 300105D5 0000
_L 300105D6 0000
_L 300105D7 0000
_L 300105D8 0000
_L 300105D9 0000
_L 300105DA 0000
_L 300105DB 0000
_L 300105DC 0000
_L 300105DD 0000
_L 300105DE 0000
_C0 Teleport Menu 8
_L 300105E0 0020
_L 300105E8 0036
_L 300105E9 003B
_L 300105F0 0036
_L 300105F1 003B
_L 300105F4 0036
_L 300105F5 003B
_L 300105F8 0036
_L 300105F9 003B
_L 300105FC 0036
_L 300105FD 003B
_L 30010600 0036
_L 30010601 003B
_L 300DA829 0001
_L 300DA852 0030
_L 3008EEDC 0001
_L 3008EEF6 0001
_L 3008F716 0001
_C0 DEBUG MENU MODS 2
_L 00000000 0000
_C0 Game does not freeze while Debug Menu is active
_L 800C24EC 0000
_C0 Show Debug Menu
_L 300DA828 0001
_C0 Hide Debug Menu
_L 300DA828 0000
_C0 Select Jump Option
_L 300DA829 0001
_C0 Set Room List to 300
_L 300DA82A 0002
_C0 Set Room List to 800
_L 300DA82A 0007
_C0 Set Room List to 900
_L 300DA82A 0008
_C0 Set Room List to 1000
_L 300DA82A 0009
_C0 No Window
_L 300DA851 0000
_C0 Left/Right Window Position
_L 300DA84C 0020
_C0 Up/Down Window Position
_L 300DA84E 0048
_C0 Up/Down Window Size
_L 300DA852 0060
_C0 RPD Computer Menu
_L 30010804 00EC
_L 30010805 0056
_L 30010806 0002
They are all in CWCHEAT format for use with an EBOOT on the PSP.
Anyways, you should have no trouble with converting them to more generic formats if you need to do so!
Here's some debug menu related stuff:
Modify Debug Menu Options:
_C0 Debug Menu Option 1
_L 300105E8 00XX
_L 300105E9 00YY
_C0 Debug Menu Option 2
_L 300105EC 00XX
_L 300105ED 00YY
_C0 Debug Menu Option 3
_L 300105F0 00XX
_L 300105F1 00YY
_C0 Debug Menu Option 4
_L 300105F4 00XX
_L 300105F5 00YY
_C0 Debug Menu Option 5
_L 300105F8 00XX
_L 300105F9 00YY
_C0 Debug Menu Option 6
_L 300105FC 00XX
_L 300105FD 00YY
_C0 Debug Menu Option 7
_L 30010600 00XX
_L 30010601 00YY
Replace XX/YY with to get the desired effect:
Nothing happens:
XX = 10
YY = 3B
Can't choose anything, cursor always remains on the first option:
XX = 3B
YY = 36
Freeze without menu:
XX = A4
YY = 35
JUMP with Square and can choose ROOM:
XX = A4
YY = 36
Scrolls backwards through the rooms (automatically):
XX = A4
YY = 37
Can only scroll backwards through rooms:
XX = A4
YY = 38
"Activate" disabled options with Square:
XX = A4
YY = 39
Teleport with Square but can't choose room:
XX = A4
YY = 3A
Freeze with menu:
XX = A4
YY = 3B
Debug Menu Graphical Mods:
_C0 Debug Menu Graphics
_L 30010804 00XX
_L 30010805 00YY
_L 30010806 00ZZ
Replace XX/YY/ZZ with to get the desired effect:
Normal:
XX = 24
YY = FD
ZZ = 02
Blue Letters:
XX = 2C
YY = FD
ZZ = 02
Numbers go crazy:
XX = 1C
YY = FD
ZZ = 02
Timer goes crazy:
XX = A8
YY = FF
ZZ = 02
Numbers go crazy:
XX = EC
YY = FC
ZZ = 02
Hexadecimal Timer (Small Letters):
XX = 38
YY = FF
ZZ = 02
Hexadecimal Timer (Large Letters):
XX = 40
YY = FF
ZZ = 02
RPD PC Menu:
XX = EC
YY = 56
ZZ = 02
Standby (Black Screen):
XX = D0
YY = 55
ZZ = 02
Empty Debug Menu:
XX = 84
YY = 56
ZZ = 02
Empty Debug Menu:
XX = B4
YY = 56
ZZ = 02
Reload Current Room:
XX = 4C
YY = 53
ZZ = 02
Here are a few debug feature activators:
_C0 DEBUG ACTIVATORS
_L 00000000 0000
_C0 Debug Menu ON
_L 300C24EE 0040
_C0 Debug Menu OFF
_L 300C24EE 0000
_C0 Weapon Mugen ON
_L 300C6DB8 00FF
_L 300C6DB9 00FF
_L 300C6DBA 00FF
_L 300C6DBB 00FF
_C0 Weapon Mugen OFF
_L 300C6DB8 0000
_L 300C6DB9 0020
_L 300C6DBA 0004
_L 300C6DBB 0000
_C0 Map Debug ON
_L 300C6F08 0001
_C0 Map Debug OFF
_L 300C6F08 0000
Have fun with them!
And stay tuned for updates!
Edit:
Looks like I've missed some codes while translating them...
I've corrected this now!

Edit2:
Just added some debug menu modifiers!
Edit3:
A few new codes have been added!
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