Time Diver: Eon Man

Time Diver: Eon Man is a cancelled action game for the Nintendo Entertainment System by Taito Developed by A.I, with assistant planning and direction by Shouichi Yoshikawa. Originally, this game was planned as a sequel to Wrath of the Black Manta (忍者コップサイゾウ, traslation as Ninja Cop Saizou). At first, it was developed by three people, including Shouichi Yoshikawa. After that, we were forced by Taito to change the graphics and programming. The reason for this was that Yoshikawa was working on the planning and graphics of Bonk 3 at the time.

Prototype Release
A prototype ROM was released by Frank Cifaldi on February 27, 2007.

Time Diver: Avenger
After Eon Man was cancelled, it was discovered that at some point in 1994, a pirated of Eon Man called "Time Diver: Avenger" was released in the Asian market by a company called Nitra. The title screen had the name, copyright, and Taito logo all replaced. We don't know exactly why the cancelled Eon Man was pirated and released in the Asian market, but it is possible that Nitra is a pirate group and somehow got hold of the leaked copy.