Wow, lots of details on this one. The parallax backgrounds, the backgrounds themselves, the way things interact with light, the sound effects... It oozes care and work, it's amazing how much was put into it in a month! Gameplay-wise, I like the level design, the way you can see through floors and walls to allow you to plan your moves is very cool. However, depending on passwords felt a bit awkward because if you fail after acquiring the password, you don't need to redo the whole level, you just go to the vault and put the password, which was often close to the entrance. Moving around could use a little bit more work, especially when moving around lasers. It wasn't also so obvious when you could go up and down, the difference between those types of floors was very minute. But yeah, other than that, you have a cool game. Great job!