These are a few hacks I've done over the years. I hope you enjoy them!
The files contain patches and instructions; these are not ROMS.
You can patch the roms by hand or use a patcher program. A Java patcher
program is provided at the bottom of the page. You'll need to patch the
original ROMs and burn a new one for your game.
Disclaimer: Removing and installing roms sounds easy, but hardware this old
can be particularly fragile. There is always a possibility of making a mistake
or damaging your hardware. You are responsible for your own actions. Install
at your own risk. No warranty expressed or implied. All rights reserved.
Upright version: Free Play Hack v1.0 Tester needed
Moon Patrol (IREM)
Free Play Hack v1.0 Tester needed
Patcher (Java version - must have Java installed to run)
Version 1.4: patcher.jar
To use, type "java -jar patcher.jar <romfile> <patchfile>"
where <romfile> is your original ROM data, and <patchfile> is the romhack patch file for that ROM
Running this program creates a new ROM data file.
Patch Calculator (Java version - must have Java installed to run)
Version 1.0: patchcalc.jar
To use, type "java -jar patchcalc <original-rom> <modified-rom>"
where <original-rom> is your original ROM data, and <modified-rom> is hacked rom data
Running this program generates a patch file.
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