Mez's Codes...

[Mezmorize]

This is what I use for SMS/SGG GB/GBC:
http://imrannazar.com/GameBoy-Z80-Opcode-Map

It's for the Game Boy, which is missing some of opcodes used in a regular z80, but 98% of the time it's all you'll need.
I can make you some debugging examples if you wish.

00 means do nothing, so you'll want to use that to replace 35 usually.
3A is often used to replace a 32 because it reads the RAM address instead of write to it.
You only use 00 to replace single byte instructions, you would never want to replace a 32 with 00 because 32 is part of a 3 byte instruction (32YYXX).

[47iscool]

Hey Mez I have a way you could debug GG games. That tutorial about Dolphin and Cheat Engine work for most emulators that have have PC debug registers. CE and Regen work too, all you need is the Z80 PC register and voila you got your address.

[Mezmorize]

Thanks for the offer, but I made my very first ROM code ever with Cheat Engine years ago; for the Game Gear.
http://gamehacking.org/vb/threads/25...8883#post38883

CE is also how I've made them for n64 and Sega CD.

[47iscool]

Thanks for the offer, but I made my very first ROM code ever with Cheat Engine years ago; for the Game Gear.
http://gamehacking.org/vb/threads/25...8883#post38883

CE is also how I've made them for n64 and Sega CD.

How can you make N64 ASM codes? PJ64 2.1 doesn't have the r3400i debug registers, unless you're using MESS. I know BizHawk can also search for codes on N64 but it doesn't have debug registers. (at least not that I'm aware of)

[Mezmorize]

Sadly, the only method I've used for N64 does not work on all games.
With pj64 I just use the usual 'find out what accesses the address' and if it's going to work, the ROM address will be in Cheat Engine's EAX register.

For example the RAM address for invincibility (800DEEC3) for Duke Nukem: Zero Hour (USA) will give you a ROM address 353A6810 (Edit: oops I mean this is the address that showed up for me in the EAX register in CE). I then use the MIPS assembler that I uploaded here.

I copy some bytes from CE to Hex Workshop to find the location in the ROM.

Off to work for at least 10 hours like usual, so it'll be a while till I can make any more replies.

[Mezmorize]

Just to elaborate on my previous post, I made somewhat of a guide here:
http://krikzz.com/forum/index.php?to...16379#msg16379

It's not the best way to go about making ASM codes for N64, but it does work (for some games at least).

[ReyVGM]

Hey Mez, is it okay if I request a N64 code? It's for Mischief Makers. Can you make a code so the time you took to finish a stage is zero?

I've been doing "more than" searches with bizhawk, but I can't find the address for the seconds or minutes.

[Mezmorize]

I gave it a go, but didn't have any luck :-(
I've never tried bizhawk, is it as 'good' as Project 64?

If you're using it just because it has a cheat searcher, be aware that some versions of PJ64 has a working cheat searcher also:

[ReyVGM]

Bizhawk is a multi system emulator and it has most of the options FCEUX and SNES9X have. It's also faster, and you don't have to mess with plugins either.

So if you like mixing and matching your plugins, Bizhawk is not for you. If you want a hassle free emulator, then go ahead and try it.

I didn't know there was a version of PJ64 with a cheat search. But I can't downgrade from 2.1 to 1.7.

[seznam88]

Hi please can you create for me the new code for invincibility against enemies for Abadox (NES) I have new one for against walls but I need new one for against enemies there is 2 codes for this but one of them doing a graphical glitch on the character at the end of the game and second one have in info that stage 4 boss can be invincible too
Thank you

[Mezmorize]

Yet again, more codes for the Sega Game Gear:

Alien 3 (USA, Europe)
Stage Select
5F995A:67
Press the 2 button while on the Main Menu.

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Aladdin (USA, Europe)
Test Mode Menu
BA0FBB:BF
Press Up while Press Start Button is flashing on the Title Screen.

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Alien Syndrome (USA, Europe)
Configuration Menu
0E2F06:01
Press the 2 button on the Title Screen to open the full Configuration Menu.

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Simpsons, The - Bart vs. the Space Mutants (USA, Europe)
Infinite Lives Cheat
0837CC:01
Press the 1 button while the T.V. is being displayed during the intro. The T.V will turn white and you will gain infinite lives. Add this line of code to allow any button besides Start to enable the cheat: BE37C0:BF

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Batman Forever (World)
Cheats Menu
C86A9F:C9
Press any d-pad direction while on the Difficulty screen for the Cheats Menu.

View Ending
286AA6:18
Press any d-pad direction while on the Difficulty screen to view the ending.

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Batter Up (USA, Europe)
Boot Into The Sound Test (RAM)
00C10B:85
Must turn off the code after entering the menu.

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Buster Fight (Japan)
More Difficulty Levels
D83219:00
Press Up while Press Start Button is flashing to unlock the difficulty level called Extra (hardest), pressing Up a second time will also unlock the Zero difficulty level (easiest).

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Cool Spot (USA)
Start At The Cheats Menu
2167DF:4D

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Daffy Duck in Hollywood (Europe) (En,Fr,De,Es,It)
Invincible
C069F8:C9

Invincible (RAM)
00C5C8:FF

Stage Skip
13BA77:00
Press the 2 button at the usual level selection screen to advance further.

Stage Skip (RAM)
00C5C9:FF

Fergus Head Mode
060EEE:00

Fergus Head Mode (RAM)
00C5D8:FF

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Desert Speedtrap Starring Road Runner and Wile E. Coyote (USA)
Invulnerability
031806:04
You must go inside the options menu and change the game mode to 'CHEAT'.

Invulnerability
C241A8:C3

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Donald no Magical World (Japan) (En,Ja) [Ronald in the Magical World (Japan) (En,Ja)]
Test Mode
078736:01
Press Up while Press Start Button is flashing on the Title Screen.

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Doraemon - Noranosuke no Yabou (Japan)
Level Select
B84086:BF
On the Title Screen (while text is flashing), press any direction seven times and then press start. Pause the game to change the level.

Level Select (RAM)
00C086:01
Pause the game to to be able to change the level.

Free Movement Mode
C2480C:C3
Turn off the code to move normally again.

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Bram Stoker's Dracula (USA)
Cheat Mode
C4523F:CD
Code needs to be enabled before leaving the Title Screen. Press the 2 button while in the cheat menu to enable invulnerability.

Cheat Mode (RAM)
00C520:01
Code needs to be enabled before leaving the Title Screen. Press the 2 button while in the cheat menu to enable invulnerability.

Invulnerability
C01957:C9

Invulnerability (RAM)
00C522:01

---

Ecco the Dolphin (USA, Europe)
Debug Menu
088468:01
Press Right while on the map screen (hold Start during gameplay).

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Ecco - The Tides of Time (USA, Europe)
Debug Menu
08A572:01
Press Left while on the map screen (hold Start during gameplay).

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Foreman for Real (World)
Cheat Mode
C83933:00
Don't press Start at the Title Screen to see what cheats are enabled.

Cheat Mode (RAM)
00D0B8:01

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Mick & Mack as the Global Gladiators (USA, Europe)
Cheat Menu
C05409:00
In the Options Menu, highlight Music and press Right.

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Heavy Weight Champ (Japan)
Cheat Mode
031BD5:01
On the green speed selection screen, hold the 2 button and press Left to activate the cheat mode. Pause the game and press:
Up for nine super punches.
Down to recover life.
Left to finish the round.
Right to win the match.
2 to end the match in a draw.

---

Hyokkori Hyoutan-jima - Hyoutan-jima no Daikoukai (Japan)
Invincibility
C81FC9:C9
The code must be enabled before booting the game, if not playing on real hardware you must reset the emulator after enabling the cheat.

Stage Select
1009B0:01
Press the 1 button and then the Start button while the text Press Start Button is flashing on the Title Screen.

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Indiana Jones and the Last Crusade - The Action Game (USA, Europe)
Stage Skip (RAM)
00C946:01
Pause the game and press any direction on the d-pad to skip to the next stage.

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Judge Dredd (USA, Europe)
Stage Select (RAM)
00DAEA:FF

Stage Select
00061C:FF
The code must be enabled before booting the game, if not playing on real hardware you must reset the emulator after enabling the cheat.

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Jungle Book, The (USA)
Stage Select
C45588:CD

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Kenyuu Densetsu Yaiba (Japan)
Advanced Options Menu
0E1292:01
Press the 2 button while on the Title Screen.

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Lost World, The - Jurassic Park (USA)
Stage Select
CA413E:C3

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Magic Knight Rayearth 2 - Making of Magic Knight (Japan)
Sound Test Mode
2848DA:18
Press Up on the Title Screen.

Sound Test Mode (RAM)
00D01F:01

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Mappy (Japan)
Stage Select Enabled (RAM)
00C2D6:01

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Marble Madness (USA, Europe)
Able To Choose Starting Level
0B0605:00
04060C:00
Press Up while highlighting Start on the Main Menu.

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Vampire - Master of Darkness (USA)
Boot Into The Ending
00DFEC:09

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Nazo Puyo Arle no Roux (Japan)
Boot Into The Sound Test
C8677A:00
BE677B:BF

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Ninja Gaiden (USA, Europe)
Password Menu
BE1BFB:BF
Press Start at the Title Screen to access the password menu.
(See http://www.smspower.org/Cheats/NinjaGaiden-GG for passwords.)

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Ninku (Japan)
Advanced Options Menu
044520:09
Press any button besides Start, on the Title Screen.

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Psychic World (USA, Europe) (Rev 1)
Sound Test & Stage Select
C00D15:00
The menu shows up after exiting the Title Screen.

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Putt & Putter (USA, Europe)
Configuration Menu
CC0ECB:CD

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RoboCop versus The Terminator (USA, Europe)
Change Guns
102C03:02
Pause the game then hold Up and press the 1 button, when you resume game play you will have a different gun.

9 Lives
102C75:02
Pause the game, hold Up and press the 1 button for 9 lives.

Stage Skip
102CE4:02
Pause the game, hold Down and press the 2 button. When you un-pause you'll skip to the next stage.

Invincibility
102D40:02
Pause the game, hold Up and press the 2 button to become invincible.

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Sonic Blast (World)
Stage Select
C224FD:C3

Stage Select (RAM)
00D140:FF

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Sonic Chaos (USA, Europe)
Sound Test
C80B0B:00
Press Start on the Title Screen, the Zone Select cheat will not activate with this cheat on.

Zone Select
C8083F:00
Press Start on the Title Screen, the Sound Test cheat will activate instead if the cheat is also enabled.

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Sonic The Hedgehog 2 (World)
Zone Select
102543:00

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Sonic The Hedgehog - Triple Trouble (USA, Europe)
Zone Select
201A2B:18

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Star Wars (USA)
Stage Select Enabled (RAM)
00DE7C:01
You must beat stage 1 and then lose all your lives. The stage select will be on the continue screen.

Stage Select Enabled
C45A7D:CD
You must beat stage 1 and then lose all your lives. The stage select will be on the continue screen.

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Tails' Sky Patrol (Japan)
Options Menu (RAM)
00D787:02
The menu will show up after the Title Screen. It contains a sound test and stage select.

Options Menu
CA508F:C3
The menu will show up after the Title Screen. It contains a sound test and stage select.

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Terminator, The (USA, Europe)
Level Select
00CF25:??
Must be enabled before leaving the Title Screen.
00:Level 1
01:Level 1 Boss
02:Level 2
03:Level 2 Boss
04:Level 3
05:After Level 3
06:Level 4
07:Level 4 Boss
08:Level 5
09:The Ending

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Tom and Jerry - The Movie (USA, Europe)
Test Mode
108F13:00
Press any button besides Start, eight times on the Title Screen.

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VR Troopers (USA, Europe)
Cheat Menu
072E7F:08
The Cheat Menu is located in the Options Menu. Highlight the blank option under Exit and press Right.

Cheat Menu (RAM)
00CD9E:01
The Cheats Menu is located in the Options Menu under Exit. To enter the menu, highlight the option and press Right.

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Wolfchild (Europe)
Stage Select (RAM)
00C0FF:04
You can select your starting stage from the Main Menu.

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Revenge of Drancon (USA)
Start On Stage (RAM)
00C128:??
00:Area 1 - Round 1
01:Area 1 - Round 2
02:Area 1 - Round 3
03:Area 1 - Round 4
04:Area 2 - Round 1
05:Area 2 - Round 2
06:Area 2 - Round 3
07:Area 2 - Round 4
08:Area 3 - Round 1
09:Area 3 - Round 2
0A:Area 3 - Round 3
0B:Area 3 - Round 4
0C:Area 4 - Round 1
0D:Area 4 - Round 2
0E:Area 4 - Round 3
0F:Area 4 - Round 4
10:Area 5 - Round 1
11:Area 5 - Round 2
12:Area 5 - Round 3
13:Area 5 - Round 4
14:Area 6 - Round 1
15:Area 6 - Round 2
16:Area 6 - Round 3
17:Area 6 - Round 4
18:Area 7 - Round 1
19:Area 7 - Round 2
1A:Area 7 - Round 3
1B:Area 7 - Round 4
1C:Area 8 - Round 1
1D:Area 8 - Round 2
1E:Area 8 - Round 3
1F:Area 8 - Round 4
20:Area 9 - Round 1
21:Area 9 - Round 2
22:Area 9 - Round 3
23:Area 9 - Round 4
24:Special
25:Special
26:Special
27:Special
28:Special
29:Unfinished?

Down+Start Stage Select Cheat Allows Access To All Stages
24BE62:2A

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World Derby (Japan)
Sound Test
056898:00
Press the 2 button on the Main Menu.

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Yogi Bear in Yogi Bear's Goldrush (Unknown) (Proto)
Level Select
B85412:BF

SMS RAM Codes:

[BIOS] Alex Kidd in Miracle World (USA, Europe)
Play the BIOS dump as if were a cartridge.
00C112:00

[BIOS] Hang-On & Safari Hunt (USA, Europe) (v2.4)
Play the BIOS dump as if were a cartridge.
00C000:00

[BIOS] Sonic The Hedgehog (Europe)
Play the BIOS dump as if were a cartridge.
00C000:00

Walter Payton Football (USA)
Makes Game Work On Fusion v3.64
00DE00:00

[terpsfan101]

Is this code RAM or ROM?, because if it is ROM it can't be converted to Game Genie format:

Vampire - Master of Darkness (USA)

00DFEC:09 Boot Into The Ending

[Mezmorize]

RAM, no Game Genie address can start with anything above BFFF since Cxxx and Dxxx are RAM locations.
http://www.smspower.org/Development/MemoryMap

[Hybrid]

Vampire - Master of Darkness (USA)
See Ending by starting a new game
090-67E-E66

btw theres no conversion between RAM and Game Genie its the ROM codes which can be encrypted to Game Genie

hey mez why don't you encrypt your ROM codes to Game Genie Format you know some of us have game gears and adaptors :P

[Mezmorize]

I did, all the ROM codes I added to the database today in the Game Genie format.

I just got a Game Gear myself, one that's been fully re-capped and picked up a Master System converter and a Game Genie to go with it. Will be ordering an EverDrive for it in the next couple of weeks too ^.^