Try downloading and running it again, I've updated it. The current build fixes a bug on some hardware so it might work for you, and now it should also always show an error message in case it crashes.
It works now...but I'm stuck. it's the level that he says "I kill myself, yet I never die"
Some levers can be activated twice.
I can't get to any levers in that level.
Have you tried killing yourself with J and floating to the island on the right?
yea....then what? I can't shoot the lever. the rock is in the way
You can jump up the floating island and shoot the lever from the top left of the island.
I can't go under the floating island to get to the other side so I can get up there. It's that first rock under the island I can't get past, no matter what form