Good, simple game! I agree with what others said, falling off spawning you seamlessly into the start is such a small detail that's really effective. I also noticed that as long as you touch a platform, you can jump mid-air. I don't know if it was intended, but it kinda made the game more interesting!
I was a bit uncomfortable with the view space (dunno if that's what's called), I found myself guessing where the next platform is sometimes, so it would benefit if you could lower it a bit.