Very interesting idea with level change, I like it! Maybe you can make it easier if the timer runs out, but you'll miss out on the bananas that were there previously. I get the idea with monkeying around, but from the gameplay perspective, I think beating an easy version of a level you struggle with might give you some muscle memory to beat the harder version of it without too much frustration, making it a cool way to encourage a replay for the highscore in bananas. Good job!