Use W for up, A for left, D for right, and S for down. Dying resets your score. Even if you die, there is no counter. Nothing to kill, either. Touching dark gray causes you to die. Of course, light gray is fine to go through. It's not timed, and you can take as long of a time as you like. There are seven levels, and these are mostly original ideas. That's the first world. I'll add more levels or another world in Summer.
5/1/18-I don't have the latest version of Adobe, so I downloaded a very early version of offline scratch; I hope the game still works fine. 10/25/18-Added 5th level. Changed Level counting. Was 0,1,2,etc. Now 1,2,3,etc. 10/10/19-Added 6th level and improved 5th. Unfortunately, counting has reverted. Trying to fix. 3/11/2020-Added 7th level and fixed counting. 5/5/2020- Changed movement speed to make the first level possible and, since that made some levels absurdly easy, I made those levels harder. Added a couple other smoothing features.