Run around with the W, A & D keys and press space bar to spin the level. Click with the left mouse button to suicide and respawn as a random character.
I initally had the idea of a kind of platforming roguelike with this game where you unlock characters from a massive pool. The greyed out areas on the map show where the level will end up after you've spun it, so you can make that vital jump and spin at the right moment to catch a platform. I might finish this one day as I think it's a pretty solid concept.