Mega Man 4 (USA) (Rev A) [Hack by Insectduel v1.0] (~Megaman Showdown IV EX - Hard) (Boss Mode) is another ROM hack by Insectduel, based on Mega Man 4 (USA) Rev A. The "EX" addition to the title implies that this version expands upon the changes introduced in "Megaman Showdown IV", likely with additional content, levels, or challenges. It maintains the increased difficulty and boss-focused "Boss Mode", offering a more extensive overhaul than the previous hack by Insectduel. The core gameplay of the original is fundamentally changed.

Mega Man 4 (USA) (Rev A) [Hack by Insectduel v1.0] (~Megaman Showdown IV EX - Hard) (Boss Mode)

Mega Man 4 (USA)