Jest

Jest is a cancelled Nintendo 64 and PC game by Curved Logic. It is a third-person platformer where you change appearance every level.

Plot
You play as Jok/Jax, a young jester's apprentice. Your job is to work your way up to full jesterhood. You would do this by acquiring powers and killing things. Of course.

Gameplay
There would have been 64 levels, eight levels per eight worlds. These ranged from a circus, a haunted house, Chicago, Mars, and the North Pole.

There were to be four bosses to face against. There was also four difficulty levels to choose from.

Cancellation
Jest was cancelled in 1998 due to Infogrames not trusting the N64 to met sales figures. Infogrames going through acquisitions at the same time did not help matters.

Videos
Trailer.