Thanks so much for playing! The puzzle that you couldn’t solve actually opens up a lot more of the overworld there are a total of 10 overworld puzzles I believe. Also yes we were definitely going for a feel similar to baba is you when making the game. About the undo button we wanted to add it but ran out of time at the end after adding the reset button, but I agree that it definitely should be a feature in the game. Thanks for the feedback!