This is a mod that replaces the status screen with a debug menu when you pause the game. The debug menu allows you to give yourself items, download area maps, save the game, modify the in-game time, switch the language, change the difficulty, and set events. This debug menu is present in a beta version of the game, but nearly all of the debug menu's code and data were removed in the official release.

To apply the mod, use Lunar IPS to apply the ZM_U_debugMenu.ips file to a North American (U) version of a Metroid Zero Mission ROM.

The asm source files are also included for those who wish to customize the code or use the files in a project. In particular, there's an option to use the original Japanese text for the menu items.

For more information on how to use the debug menu, refer to the readme.txt.