In 1992 / 1994 Manley & Associates were working on a Tarzan platform game for the Super Nintendo, that would have been published by Gametek. The project was later cancelled, as we can read from Clayton Kauzlaric‘s blog:
The project was pretty close to content complete when it was canned. We had stumbled along for a good five months without any real design, apart from what the artists and programmers cobbled together on the fly. The game’s cancellation may have been related to the way good ol’ Tarzan methodically slaughters his way through the endangered species list over the course of the game. The fact that doing so wasn’t even fun just sealed the deal.
Rod_Wod found many screens from the game in some old magazines and Celine was able to find another image in Console Plus issue #34