Can use arrow keys, space or wad. I would recommend playing in full screen. It has better collision detection there and is easier to see.
Heaps of thanks to jburrito75. He came up with the engine and physics and I simply have been tweaking levels, adding more content and adding a bunch of other stuff. This is incomplete and I will add more content. """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Update log: Beta 0.1: Added spikes, added music, added game over, added a longer level.