List of Game Genie codes

[Jeep Liberty Video Game King]

What is the NES Game Genie code for moonwalking for Home Alone?

[jpx72]

Hello again! There is this awesome romhack of the original JAP Solbrain that inserts Submarine level from US "Shatterhand" to the rom!

https://www.romhacking.net/hacks/5215/

But there is a problem because the available codes don't work, can you please help me find a code to keep the power ("blood"?) level constant?

Thank you so much!!!

[UglyJoe]

Give these a try:
SZNEPUSE
SZEZAESE
SZVNEESE

The first one I know works.  The second and third would patch the same code as it appears in a few different spots in the ROM.  I'm not sure if/when they are needed.  Should be fine to run with all three at of them at once, though.

[jpx72]

Oh man you are a lifesaver (literally ) throughout all these years!
Thank you for your time! I owe you a (voluminous) couple of pints!
Will test and report

[jpx72]

Ok so the first code is working nicely, but the spikes still hurt you.
>attachment<
The second code makes you invincible even to the spikes!
No problems occured throughout the game so I can confirm these two are perfect!
The third makes you dead right away, so that is probably something bad.

But bottom line, UglyJoe, you are AWESOME!

[UglyJoe]

I guess I didn't test them very much, haha.

I wonder if the third code patches the part where it initially sets health when you start the game.

Glad the other two combined worked out for you, though.

[jpx72]

Hello can you help me insert the Solbrain code inside the rom?
This is the info for the codes:

SZNEPUSE
Value AD
Compare 8D
Adress 0379

SZEZAESE
Value AD
Compare 8D
Adress 2000

The game is mapper 4, both PRG and CHR are 256kB each.
UglyJoe you one wrote you have to add the ines header size to the adress and substract prg size, but that was a rom without bankswitching. Can you please guide me? Thank you!

[UglyJoe]

There are a few utilities for making GG codes permanent.  I haven't used any of them, but that's what I would recommend for this one.

[jpx72]

Ah okay I did a quick search and found a couple, so will try these. For anyone else interested:
https://www.romhacking.net/utilities/1054/
https://www.romhacking.net/utilities/784/

[Jeep Liberty Video Game King]

I am looking for game genie codes for Michael Andretti's World GP

[Jeep Liberty Video Game King]

What is the game genie code for one hit kills for Mega Man 6 for the NES?

[Jeep Liberty Video Game King]

What is the game genie code for P-Block lasts forever for SMB3 for NES?

[Jedi Master Baiter]

For Mega Man 6, modifying the game genie code LOOEKGPP (normal shots do more damage) to YOOEKGPO, normal shots one hit most enemies and two shot stronger enemies. I've only tested this out on Blizzard Man and Tomohawk Man, and it two-shotted both of them.

As for SMB3, the address in the rom that controls the countdown is 010219: CE 67 05 (decrease $0567). I changed the address to FFFF, and the Game Genie codes are:

NYEXZZYV
NYEXLZIE

I don't know if this has any side effects, but maybe someone smarter can figure out a better solution? Like change the CE? I don't know why I didn't think to do that. But what should I change it to?

[UglyJoe]

For the SMB3 one, which ROM were you using?  I think the offsets change by region and revision.

You could try changing the DEC to LDA; that can break stuff, in general, but if it's the spot in the code that I see in the Japanese version then it's fine (since it'll just jump via the following BPL and that routine does an LDA right away).

[Jeep Liberty Video Game King]

For Bigfoot for the NES, I want to find out the game genie code where I can destroy opponents with one hit with the circular saw.