Official New Game Genie Code Thread

Mercs (Genesis)


EJBT-AA3W
Master code (improved). Gets rid of the blank/red screen and makes the game load faster.


9V9T-BCLL
AB9T-AJCN
All levels start with 400 seconds in Arcade mode.


9V9T-BCLL
AB9T-ANCN
All levels start with 600 seconds in Arcade mode.


EK9T-AA6C
Infinite time in Arcade mode.

Mercs (Genesis)

9TVT-BCGC
BAVT-AAGE
Start with all 5 characters in original mode. You access them by pressing Start.

Mercs (Genesis)

EDBT-AA5L
Infinite money in shops. Also allows you to buy items even if you don't have any money. Shops are only in the "Original Mode".

Mercs (Genesis)

R1BA-A6Y6
Can buy items as many times as you want in the shops. Note that you must limit the number of "Top Secret Info" that you buy to 1 or 2 or else the game can have some graphical issues. Shops are only in the "Original Mode".

EDIT: New code (old one was incorrect)
EDIT2: Changed code description

Mercs (Genesis)

R00A-A6ZC
Many enemies are gone. Some enemies and "bosses" are still there.

Mercs (Genesis)

C5SA-AA26
C5SA-AA4A
SDVA-AA8C
Walk thru walls, fences, forests, etc. Note that enemies can't follow you when you walk thru fences, into forests, etc. Also, with some bosses at the end of levels, you can walk behind them where they can't reach you, and easily kill them from there.

Mercs (Genesis)

RE4T-E61R
Bosses at the end of levels are much easier to kill.

DEcapAttack (Genesis)

AC7A-FZ4A
Jump higher. Can be combined with slow moon descent code.


AC7A-FV4A
Jump much higher. Can be combined with slow moon descent code.


AC7A-EAFT
Slow moon descent. Can be combined with jump codes.

DEcapAttack (Genesis)

R02A-E6X4
Walk thru walls.


CABT-AA22
Master code (improved). Gets rid of the blank screen and makes the game load faster.

DEcapAttack (Genesis)

96AA-JGG6
3JAA-JBHA
Pause the game to get 20 seconds of invincibility

DEcapAttack (Genesis)

HAAA-KE10
N6AA-JF12
Pause the game to refill your health. Repeat as many times as needed. Note that if you keep adding health, your hearts may start to look funny, but you will get more health than is normally possible.

Note: Can be used with the "Pause for invincibility" code.

Phantasy Star 3 (Genesis)

BTGT-CA6E
No TP lost when using Foi Technique

Thank you so much for your work!

I have a couple of requests for some GG codes, and I hope you could help.

The first is more of a general one: Browsing the interwebs for GG codes I noticed that for many games 'basic' codes giving the player more Lives and more Continues do not seem to exist yet. There are plenty of invincibility codes but not a whole lot of the "Start with X lives and Y credits"-type of code. Maybe if you tackle your next game you could have a look into doing one of those in addition to your more advanced codes? The reason for this request is that games often are too challenging on default (especially for young kids) but one the other hand shouldn't be made too easy either (ie. with invincibility codes).

My second request: Do you think it is possible to come up with a code to simulate the Mode button being pressed upon boot up for games like Ms. Pac-Man, Golden Axe 2 or Forgotten Worlds which don't work with a six button controller without the Mode button being pressed upon booting? I've encountered this issue recently when my nephew tried to play these games. His hands are too small for the standard three button controller so having an option to patch these games with a GG code to fix them for a six button controller would be perfect!

Lastly, I am also looking for a code that prevents the dragons in Golden Axe from running away after two hits / after inactivity. The ROM is Golden Axe (JUE) (REV 01) [!]. Codes like that do exist for GA2 and GA3 but not yet for GA1.

Quote:

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Originally Posted by retrospiel

The first is more of a general one: Browsing the interwebs for GG codes I noticed that for many games 'basic' codes giving the player more Lives and more Continues do not seem to exist yet. There are plenty of invincibility codes but not a whole lot of the "Start with X lives and Y credits"-type of code. Maybe you could if you tackle your next game you could have a look into doing one of those in addition to your more advanced codes? The reason for this request is that games often are too challenging on default (especially for young kids) but one the other hand shouldn't be made too easy either (ie. with invincibility codes).

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If you have a specific game or two in mind, let me know. There are too many games out there to start randomly sifting thru them.

Thanks!, it was more of a general request for games you're playing around with anyway.

From the top of my head I remember Captain America, Joe & Mac, Altered Beast, Toejam & Earl 2, High Seas Havoc not having codes to up the default number of lives/continues (at least not without going unlimited).

For two player games it'd be important to have codes for both players.