Mega Man Xtreme 2 Weapon Refill Patch

This patch for Mega Man Xtreme 2 on the Gameboy Color makes weapon energy refill upon death in the whole game. A detailed description can be found on the RomHacking page of this hack, as well as an alternative download link. In this README you will find further information on how this patch was made and reference material.

Tools

• The BGB emulator, for disassembly, hex editing, memory viewing, testing and even breakpoints.
• LunarIPS, to create a patch file.

Process

The process was actually much the same as the Xtreme 1 patch. Difference being a loop implemented and the Giga Crush weapon had it's own unique Maximum value.

References

In order to write the code a lot of knowledge was required. Here I list the sources specifically used for this project. A big thanks for the people behind these to make Z80 gameboy programming more accessible.

• A visual opcode map for the gameboy Z80.
• Detailed descriptions for the opcodes, which were confusing to me without it.
• The full gameboy memory map explanation.