Bashi Bazook: Morphoid Masher is the unreleased North American localization of the Japanese Famicom game 'Bio Senshi Dan: Increaser to no Tatakai.' Developed by Jaleco in 1989, this action-adventure title follows Dan, a warrior sent back in time to 1999 to stop an alien invasion. The gameplay blends side-scrolling combat with non-linear exploration as players navigate through monster-infested zones. This rare prototype offers a fascinating 'what-if' scenario for NES fans, showcasing high-quality action mechanics and a dark sci-fi atmosphere that was ahead of its time.