Mushroom Kingdom Fusion

Mushroom Kingdom Fusion is an incredibly ambitious crossover fan game based on the Super Mario series. Developed over many years by a community of fans (originally started by JudgeSpear), the game features over 20 playable characters from different franchises, including Mario, Sonic, Mega Man, Link, and Samus. Each character retains their signature abilities. The game spans over 150 levels featuring enemies, items, and settings from a vast array of classic games like Contra, Castlevania, and Halo.

Mushroom Kingdom Fusion is listed as a Fan Games & Homebrew entry in CheckpointDB's preservation database.

It is grouped under Platformer|Action, making it easier to compare with related preservation projects and enhanced classics.

This record is treated as its own version or project, separate from normal game database entries.

Requirements are not individually verified yet, so the flags below should be treated as leads rather than confirmed instructions.