I liked the game. Being able to loop your "time clone" is a welcome addition to the formula.
In level 4 I first though I am supposed to carry the crate on my head through spikes, but it turned out to not be possible :P
One issue I found is that in level 4 I pushed the crate too far past the button and couldn't progress. A button for restarting the level would come in handy in such situation.