Super fun mechanic, I do wish there was a downwards shave, many times i shaved forwards expecting to go down and losing a level, but that's more a me needing to get used to it thing than anything else
Only managed to 2 star the second level, everything else i barely even scraped the 1 star on with about half a second to go, super tight time limits but if you have the patience to get good at it (I don't) it must be super satisfying to pull off