Time Diver Eon Man is an unreleased (Proto) NES game from the USA, indicating it's a prototype version. It likely involves time travel and may feature action or adventure elements.  Without further information, it's challenging to outline the game's features, plotline, developers, and publishers.  The "Proto" designation suggests it's an unfinished version.

Time Diver Eon Man (USA) (Proto)

Tiger-Heli (Japan)