Good game.
This was a good game, at least the tutorial and first level were.
People aren't just making up the double jump error though. I can't get past the double jump/hover in the tutorial, or the double jump to get on the first cliff.
It isn't my computer, trust me. The double jump works, but only give him a TINY boost.
And in the tutorial, it just plain doesn't work when you are trying to run sideways at the same time. -> + (Space) doesn't let you double jump.
It's probably a basic error on my part.
Lastly, you should try making your own games, not based on anything that's been done before. That's what really makes a game cool :)
Awesome anyway... Tell me how to fix the bug! It isn't my comp!