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Is there a trainer (infinite lives) ROM for defender 2 or defender arcade ?


ninsei

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Not difficult to make one using Stella. By watching what happens with RAM when you die, you can see that the lives counter is stored in $82. Issuing the command trapwrite 82 lets you find where it's decreased.
post-3056-0-60560100-1539388903_thumb.png

 

Clicking on C6 82 then typing in EA EA will replace the dec ram_82 with a couple of NOP instructions, which don't do anything but waste time.
post-3056-0-11193500-1539388966_thumb.png

 

Lastly typing saverom will save the modified ROM. On my Mac it was saved to the desktop.

 

Defender 2 Unlimited Lives.a26

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