This idea is very cool in theory. It’s one of the mechanics in Braid and the type of puzzle that can be very fun to solve. In practice, the platforming was awkward enough that the levels felt impossible to navigate - I kept getting physically stuck in the levels, with no way to reset except restart the game entirely and go through the first levels again. Given those limitations, I couldn’t make it past level 7(? 2+4 blocks, the 4 vertical get in the way of the door), because and trial and error made the situation unrecoverable.

Loved the soundtrack going forward and backward, that was a cool touch. And, the character animation was fun and gangly, great style!