Hohenheim: Skywards

Hohenheim: Skywards is a third-person platformer with environmental puzzles and randomly generated maps. You leap through the sky, follow the light and try to reach the city of Hohenheim without falling into the Underbelly below.

If you fall, you enter the Underbelly, a maze you must find your way out of before you can try to soar through the sky again. The description says that boss and enemy battles are planned for some point, but does not specify when.