Help to modify some Atari game

[anny84]

I would like to modify some 2600 game, but I'm not able to understand a bit of assembler

 

I like to change number of lifes in following games:

 

- Breakout

- Superbreakout

- Vader vs Luke (Dodge'm Hack)

- Circus Atari

 

also, I would like to avoid Air Sea Battle and Street Racer stop at 99 points. I would like the score "rolls" to 0 to count over 100; it could be nice, but I think it's harder, to have a third digit for score.

 

is there somebody can help me? Just write here the code to modify in the source code (disassembled with Distella 3).

 

Thanks

 

Anny

[Rybags]

Number of Lives is often easy.

 

Just look around for something like a LDA #3, STA $xxxx or similar.

 

Breakout should be your starting point - I'd guess it would be close to the smallest of those ROMs, and uses pretty simple game logic.

[accousticguitar]

You might want to try asking this in the "Atari 2600 hacks" section.

[anny84]

You might want to try asking this in the "Atari 2600 hacks" section.

 

Ok, thanks, I've posted the message to that forum too

 

Anny

[accousticguitar]

Number of Lives is often easy.

 

Just look around for something like a LDA #3, STA $xxxx or similar.

So you would modify it by changing the "3" to a "4" (or some other number)?