That was fun! Great concept! I felt like horizontal grounded movement was quite a bit too fast/touchy--although there's a chance that is an issue with my high refresh rate monitor (encountered this with an old Game Maker project of my own recently). Enjoyed my time with it :)
Really enjoyed this! Great gfx+music+feel! I couldn't quite manage the 3rd ending...any secret "tunnels" to jump to the last set? The first 2 sets don't give me much trouble any more but the 3rd sure does :)