While not entirely open-source, the GitHub and associated repositories often hold necessary updates for the most popular paid mod menu, Mega Hack.

gdmo (Search for "Absolute" or "HJfod" on GitHub - note: specific usernames change frequently due to DMCA, but the project is often mirrored via "Cappuccino" or "GDHM").

: A popular open-source menu designed for performance and feature expansion.

While using hacks in single-player mode is generally safe, using mods to bypass leaderboard anti-cheat mechanisms can result in a ban. Final Thoughts