What a great concept! The puzzles aren't particularly hard but it's really satisfying to watch the lawnmower work! There are a lot of great little things here. The risk of death is really funny but also slightly annoying since you have to do some waiting :D. The idea of sitting on the chair to speed up time is neat but the experience would probably be improved by a speedup button!
Still, great idea, great music and great execution over all :)