Rockman 4 Minus Infinity is probably the most extensive Mega Man 4 hack in existence, and probably one of the most extensive hacks of any game in existence.

The hack features heavily reworked weapons, brand new weapons, new items, all-new boss patterns, and brand new stages with new music and entirely new gimmicks. All kinds of obstacles, enemies, bosses and minibosses have been taken from other games from the series, including the Game Boy series and even the SNES and PSX games in the series. It must all be seen to be believed.

In this run, tianwodeai blasts through this game, utilizing the new tools to blaze through the stages and obliterate the many bosses as quickly as possible.