Thanks for the honest feedback! Going back at the start of the level (and loosing 1 level of difficulty) was a choice made to counterbalance the overall difficulty of the game (it's already really short and each level can be beaten in less than 30 seconds so I wouldn't call it 'punishing' but I get your point). As for the glitches, I'll try my best to fix those post-jam!
Thanks for playing :D