Bowser in the Dark World

 is the bossfight stage from the Bowser in the Sky level in Super Mario 64 and its remake, Super Mario 64 DS. In this level, Mario travels through platforms and obstacled in the dark world until he reaches a Warp Pipe leading to the battle against Bowser to obtain a key to open the closed double doors at the castle's basement.

In M.U.G.E.N, Bowser in the Dark World was made by Shimmering Brony, under the name of Bowser in the Dark World - Final; it is based on the last section of Bowser in the Dark World, after the Warp Pipe, where the battle between Mario and Bowser takes place and where Mario must throw Bowser into a bomb at the edge of the stage.

Shimmering Brony's version
The stage uses 3D graphics from Super Mario 64 converted to 2D sprites. The sky, the bombs and the yellow spheres contain deltas, making them move slowly when the camera moves, though the bombs and yellow sphere's move slightly faster than the sky. The stage also has a very high bound, making the camera move upwards in super jumps.