Use arrow keys. Get to the blue. Space to skip level (-100 life). R to reset level (-10 life). Touching red drains your life. If you get stuck press r. If you are still stuck, click the flag, I am still working on that.
Update 1.1: +Boss is less annoying. +4 New levels. +Hard mode if you score more than 900 (no levels skipped). -Score is now lives/life. -If life reaches zero, you get a game over.