Official New Game Genie Code Thread

[Tony H]

Cool! Will try this in a few hours By the way, the jumping codes also (sort of) work when walking. When walking and pressing the jump button, you jump forward. But with the code enabled and when doing the same, I'd stop walking and jump straight up to the ceiling. Will test it one more time to be sure.

That is a side effect of the second part of the jump code. When I use this code by itself (9A4T-B94R), it only affects jumping when standing still. When walking and jumping, the jumping acts normally. When I add the second code (ABJT-DA5W) and try jumping while walking, it does the same as what you're saying (I stop moving and jump straight up). Still haven't figured out why the single jump code doesn't work for you.

[GelmiR]

That is a side effect of the second part of the jump code. When I use this code by itself (9A4T-B94R), it only affects jumping when standing still. When walking and jumping, the jumping acts normally. When I add the second code (ABJT-DA5W) and try jumping while walking, it does the same as what you're saying (I stop moving and jump straight up). Still haven't figured out why the single jump code doesn't work for you.

Thanks for the info, Tony - that explains me why the codes didn't work for me! When it dawned on me, I even wondered "What does jumping without holding UP look like?". There you have it, pressing jump is a normal jump, and holding UP and pressing jump makes you jump a bit higher. I'm so used to having to hold UP, so that's what I was doing - and apparently holding it counts as "not standing still". Makes sense in a way, it just didn't occur to me. Sorry about that, I hope making the extra code didn't take up too much of your time! But at least, now we know why they didn't work for me.

[Tony H]

Ah, makes sense. I never knew about the holding Up to make you jump higher. Mystery solved. 😁

[Tony H]

I'll look into making high jump codes when pressing up.

Edit: And when walking

[GelmiR]

Ah, makes sense. I never knew about the holding Up to make you jump higher. Mystery solved. 😁

Yeah

I'll look into making high jump codes when pressing up.

Edit: And when walking

Thanks!

[Tony H]

Have some good news. Made a single code that works for all jumping. Someone suggested that I try making a code that modifies gravity. Had completely forgot about gravity codes. Seems to work fine. Let me know if it has any side effects.

Home Alone (Genesis) Game Genie

ABRA-CALW
Jump higher. Also makes you fall slower (less gravity).

ABRA-DACW
Jump much higher. Also makes you fall slower (less gravity).

==========

I may not delete the other jump codes, in case people want to only make specific jumps higher.

EDIT: Another code...

33YA-AJEW
BB gun causes 10x as much pain on the bad guys (Pain meter).

[GelmiR]

Have some good news. Made a single code that works for all jumping. Someone suggested that I try making a code that modifies gravity. Had completely forgot about gravity codes. Seems to work fine. Let me know if it has any side effects.

Home Alone (Genesis) Game Genei

ABRA-CALW
Jump higher. Also makes you fall slower (less gravity).

ABRA-DACW
Jump much higher. Also makes you fall slower (less gravity).

==========

I may not delete the other jump codes, in case people want to only make specific jumps higher.

EDIT: Another code...

33YA-AJEW
BB gun causes 10x as much pain on the bad guys (Pain meter).

Just tested the jumping and BB gun codes, they work great! The jumping codes do not only make you jump higher, but also farther! I could jump across an entire room with the "jump much higher" code Also, holding UP applies to these codes as well, it makes you jump up even higher (as it normally would). As for the BB gun code, 5 shots was enough (on Beginner) to fill up the pain meter and make the bandits leave the house. Very nice codes, thanks!

[Tony H]

I started looking at some of the codes that you said were causing the game to freeze. I saw the problem with the inf ammo code you posted. I'm pretty sure this code below is done correctly, and shouldn't cause any problems.

Will look at the loot code tomorrow.

Home Alone (Genesis) Game Genie

ABYA-AAE2
Infinite BB gun ammo.

[GelmiR]

I started looking at some of the codes that you said were causing the game to freeze. I saw the problem with the inf ammo code you posted. I'm pretty sure this code below is done correctly, and shouldn't cause any problems.

Will look at the loot code tomorrow.

Home Alone (Genesis) Game Genie

ABYA-AAE2
Infinite BB gun ammo.

Thanks Tony! Also tested it on bazooka, mortar, rifle and launcher weapons (to be sure), but it only works on the BB gun. I was testing a Super Ball Launcher when the bandits were in the house, and I could hear that one of them got hit. I thought, wow, what are the odds of that? I was in the Mansion at the top floor. But when I walked left, there was no bandit, so despite them being in the house, I didn't actually hit anyone. But it was clearly the sound of one of them hit by the Super Ball Launcher, though. So it might have some side effects I'll have to do some more testing.

[Tony H]

That would not be caused by the inf BB gun ammo code.

The reason that those other people's codes are causing problems is because the instruction they modified does more than just handle ammo or loot, so it affects other parts of the game as well (causing the game to freeze).

[GelmiR]

That would not be caused by the inf BB gun ammo code.

The reason that those other people's codes are causing problems is because the instruction they modified does more than just handle ammo or loot, so it affects other parts of the game as well.

Thanks for that info, Tony Though I am sure the infinite BB code was the only active code at the time. Maybe it was a glitch in the game itself, then.

[Tony H]

Going to need a little help testing these 2 codes. These codes are for looting. I'm pretty sure that the 2 codes are for the 2 bad guys (1 code for each guy). If you only use 1 code, the looting will roughly be cut in half, and using both codes should stop looting altogether (but not 100% sure on that). One thing I don't know, is if the bad guys finish looting the house (and assuming the Loot meter is empty), will the house still flood, or will they just leave and move on the to the next house, or ??? Haven't had time to get that far. I did follow them around and I'm pretty sure I have the right bad guy labeled for the right code.

Home Alone (Genesis) Game Genie

AKAA-CA52
Bad guy in the brown jacket won't loot anything. Nothing that he loots will be added to your loot meter.

AJ0A-CA7J
Bad guy in the blue jacket won't loot anything. Nothing that he loots will be added to your loot meter.

[GelmiR]

Going to need a little help testing these 2 codes. These codes are for looting. I'm pretty sure that the 2 codes are for the 2 bad guys (1 code for each guy). If you only use 1 code, the looting will roughly be cut in half, and using both codes should stop looting altogether (but not 100% sure on that). One thing I don't know, is if the bad guys finish looting the house (and assuming the Loot meter is empty), will the house still flood, or will they just leave and move on the to the next house, or ??? Haven't had time to get that far. I did follow them around and I'm pretty sure I have the right bad guy labeled for the right code.

Home Alone (Genesis) Game Genie

AKAA-CA52
Bad guy in the brown jacket won't loot anything. Nothing that he loots will be added to your loot meter.

AJ0A-CA7J
Bad guy in the blue jacket won't loot anything. Nothing that he loots will be added to your loot meter.

Thanks for these! I've only done a very quick test, but I have to double check if they are correctly labelled. The one in the brown jacket is called Marv, the one in the blue jacket is Harry. In any case, once they have looted all the safes, the meter insta-fills and the house is still flooded...

Edit: When outside, the loot meter does fill up with both codes active. That's not surprising though, as I figured a 3rd / individual code would be required for that. But I thought I would mention it anyway. Just seeing it happen now as I'm typing this and Kevin is just outside his own flooded house :P

Edit 2: Also, something is going on with the Pain meter. They got hit by the tarantula in the Mansion a lot, and it would not fill up. I also had the Invisible and infinite BB gun ammo on. When I noticed the Pain meter not filling up, I tried the BB gun on them, still nothing. Turning the infinite BB gun ammo off did it. Not sure if it's a combination of the codes, yet...

[Tony H]

GelmiR, I could not duplicate the problem with the Pain meter while using the inf BB ammo code. I tried starting two new games (as well as a saved game) with the infinite BB gun ammo code, and the pain meter seemed to work fine.

When I get time, I'll see if I can figure out a solution to the Loot meter. Something else (besides the Loot meter) is keeping track of how many safes they have opened.

Also, a quick explanation on what a master code is (i recently noticed you had asked about it awhile back). Some Genesis games are programmed so that when they first boot up, it will add up every single byte in the ROM and compare that total with what the total should be. If the two don't match, the game assumes that something is wrong with the ROM, and it won't let the game start. This is called a checksum check. A Game Genie code changes the bytes in the ROM, so it causes the checksum check to fail. The master code just makes it so that the checksum check will always pass.

[GelmiR]

GelmiR, I could not duplicate the problem with the Pain meter while using the inf BB ammo code. I tried starting two new games (as well as a saved game) with the infinite BB gun ammo code, and the pain meter seemed to work fine.

When I get time, I'll see if I can figure out a solution to the Loot meter. Something else (besides the Loot meter) is keeping track of how many safes they have opened.

Also, a quick explanation on what a master code is (i recently noticed you had asked about it awhile back). Some Genesis games are programmed so that when they first boot up, it will add up every single byte in the ROM and compare that total with what the total should be. If the two don't match, the game assumes that something is wrong with the ROM, and it won't let the game start. This is called a checksum check. A Game Genie code changes the bytes in the ROM, so it causes the checksum check to fail. The master code just makes it so that the checksum check will always pass.

I haven't been able to repeat it, either. Well actually I tried without ANY codes, and the first two BB shots didn't hurt the bandits. Neither did the spider "attacking" them several times. I think the spider just doesn't do any damage at all. Maybe I just assumed it did, as the robot in the Ultra Modern House does do damage. Forget what I said, in any case it is not because of the codes.

I would assume that once they have emptied all safes (which they can still do) it will always render the house looted? But then, I've never made any GG codes, so I wouldn't know... Thanks for all the info, also on the need for a Master code