Upside Down Maze is a maze where you are allowed to whether gravity is face down or up. By changing the direction of gravity, you are allowed to navigate the maze on the floor or on the ceiling. Neither alone will let you get to the goal so switching between the two is necessary. It features the open dynamics engine for physics.
I just wanted to see how much harder a maze would be if you were restricted not only to just a hallway but have to account for more than one layer.
I used openal for the physics (rolling around a ball)
There are many maze implementations out there, some 3d (like the screen saver). However I do not know of one that is multiple layers.
I do in fact feel like the 3d maze is significantly harder despite the fact that I generate the maze out of a 2d maze.