Thanks for the info, I don't own a Mac, but I use Unity's Mac build, so I can't test it, but I try to upload it. I think I know what I did wrong and will fix it for next time. We're glad you enjoyed the game, and the idea for the rewind is that it moves you back 2 seconds no matter what, so we wanted it to sometimes be just a time waster, and end up dropping you without a block to stand on.