Use WASD or arrows to move. Also, you can sprint by pressing both an arrow and it's corresponding key(i.e.: pressing right arrow and d to go right faster) Press M to temporarily Mute any music coming from the game. I strongly advise that you play levels 1 through 4 before attempting the others.
As it says above, thanks to Alphap07125, and all the people listed in the credits section of the game Alphap07125 lost motivation, so I am finishing the game for him. I am planning to add about 10 levels, so if there's less than that, expect more soon!