Request: SMS Afterburner invincibility

[adaml]

Mezmorize and I have tried to make a code for invincibility in SMS Afterburner but to no avail. It's a flying game, like Top Gun for the NES, but one hit from the final boss' missile will kill you instantly. I know it's very hard to make a code for a game like this, but I'm just throwing this out there for anyone who wants to try.

I've used a ton of save states while fighting the final boss (Stage 18) but have only managed to knock out one of his engines before giving up in frustration when his missiles get me. You can shoot the missiles with your regular weapon, but you have to be lined up perfectly to do it.

Any help here would be appreciated. Even a code to make it so he can't fire his missiles would enable you to beat the bastard, but that might be harder to make than an actual invincible code.

[Pugsy]

Here are the addresses and pokes for Invincibility:

2109:C9 Invincibility [Missiles (1/3)]
30AD:18 Invincibility [Missiles (2/3)]
3124:C9 Invincibility [Missiles (3/3)]
2B56:C9 Invincibility [Aircraft]

[adaml]

Hey Pugsy, thanks for making these codes, however I can't get them to work in Kega Fusion. I just started using this emulator last week, so maybe I am doing something wrong.

I'm entering them like this (with the 00 before each code):

002109:C9 Invincibility [Missiles (1/3)]
0030AD:18 Invincibility [Missiles (2/3)]
003124:C9 Invincibility [Missiles (3/3)]
002B56:C9 Invincibility [Aircraft]

I was so excited to finally beat that air tanker, so please lmk if I am entering these incorrectly or something. If only this game was as easy as the NES version

[Pugsy]

I don't use Kega Fusion...but looking at some previous codes posted for Kega Fusion for another game you need the original byte rather than 00 so try these:-

FD2109:C9 Invincibility [Missiles (1/3)]
2830AD:18 Invincibility [Missiles (2/3)]
FD3124:C9 Invincibility [Missiles (3/3)]
DD2B56:C9 Invincibility [Aircraft]

[adaml]

Yes!!! That did it. Finally, after almost 25 years I have seen the ending to this. To bad it has such a shitty ending, but at least I got to see it

Thanks a ton Pugsy.

[ReyVGM]

Pugsy always owns.

[Mezmorize]

All the RAM (PAR) codes start with 00.
To be more exact, they all start off 00C000 or higher.

Since all the addresses Pugsy posted are less than C000, they must be ROM codes.
Although, I wouldn't mind knowing the method used to find the initial RAM address ^.^

Yes!!! That did it. Finally, after almost 25 years I have seen the ending to this. To bad it has such a shitty ending, but at least I got to see it

Thanks a ton Pugsy.

Glad to see you happy with another notch on your belt lol, sorry I couldn't be much help to ya.
Come to think of it, I'm not sure if I've ever really filled a request properly...

You can use the Game Genie Code Converter app to make those unencrypted codes, ready for real hardware.
I'll be sure to add your codes to the database Pugsy.

FD2109:C9 <-Unencrypted for fusion
C91-09D-19D <-Encrypted Game Genie output





By Pugsy:

C91-09D-19D Invincibility [Missiles (1/3)]
180-ADC-4CA Invincibility [Missiles (2/3)]
C91-24C-19D Invincibility [Missiles (3/3)]
C9B-56D-91D Invincibility [Aircraft]

[Pugsy]

No problem

Since all the addresses Pugsy posted are less than C000, they must be ROM codes.
Although, I wouldn't mind knowing the method used to find the initial RAM address ^.^

I didn't use any RAM searching to find them, effectively just traced way back through code from when the plane gets hit by the various killing sprites.

Having said that, it is often possible to get a good starting point for tracing back by doing a load of EQUAL searches when you are alive and then pause the game and do an UNEQUAL search as soon as you get hit.

[iddqd]

>I can't get them to work in Kega Fusion

Kega Fusion reverse bytes order. It's necessary to add an offset +1h to each address (thanks to ArtMoney developers).

[Pugsy]

>I can't get them to work in Kega Fusion

Kega Fusion reverse bytes order. It's necessary to add an offset +1h to each address (thanks to ArtMoney developers).

It's nothing to do with that, it was actually because it uses a check value - see the 4th post down for working Kega Fusion cheats.

BTW, adding +1 to the address will not reverse the byte order. For that you would have to add +1 to even addresses and -1 on odd addresses. But, again that's not the problem here

[iddqd]

Thanks Pugsy. it was my fault. Forgot that it applied to ArtMoney - change the order of bytes in options and add +1h.

[Mezmorize]

Your Game Genie codes are up Pugsy.