I loved this! There's such a fun sense of discovery to the controller-destruction mechanic -- some great "aha!" moments here.
I do think the death-timer could have been conveyed a little bit more clearly (e.g. add a ticking clock that starts going at the halfway mark, and gets faster and faster as the timer approaches zero).
I did end up getting stuck on the level where you only have one functional key, and there's that gate right at the start with you. What do I do????
Excellent work y'all!