Just curious, since I can't remember a project like this, nor find any proof online that it's happened.
Wario Land 1 did get one, which is cool:
But nothing for 4, or any of the other games for that matter.
Wario Land 1 did get one, which is cool:
GitHub - Kak2X/wl: Wario Land disassembly
Wario Land disassembly. Contribute to Kak2X/wl development by creating an account on GitHub.
github.com
But nothing for 4, or any of the other games for that matter.