Very unique twist on the classic block pusher, I like it a lot. Definitely some bugs to iron out (as expected) but the overall design and idea is neat, and I love the context. One gripe - it was difficult for me to understand the order that the key bits need to be in when looking at the lock. Also, you may want to update the description since "enter" also skips levels. Maybe put that notice in big bold letters at the top of the game page.