Super Mario Fusion: Mushroom Kingdom Hearts. Much like the legit Square Enix franchise, Fusion features a dimension-hopping Mario, and worlds based off of other video game franchises, including Halo, Sonic, Doom, Castlevania, Ghouls and Ghosts, Mega Man, and a handful of other Nintendo titles. Using familiar controls similar to those of Super Mario World, and a new gunplay mechanic using Covenant weaponry, this programmer has created a Frankengame that is definitely worth checking out.

Spoiler

http://rapidshare.com/files/258710227/Super_Mario_Fusion_Portable.rar.html

password:  kannibal@CW