121 collisions.
About 121 from 20, though I finished...
For 20 I just opened all green in the beginning and then opened them in a slant depending on where the cars were..
...It's actually rage-inducing and tranquil at the exact same time...the black and white does something to add to the music while the fact that I am utterly failing at getting past these objects and have to jump backwards SO MANY TIMES to get over one object...Otherwise it's a good game. I'm just really bad...It's good.