Nice game! Although I found the connection to the theme to be a bit lacking, I can definitely see the potential. A few pieces of feedback:
1) As it stands, the puzzles are a bit too hard/"out there". I had a really hard time getting even just the first number!
2) I found some of the collision boxes were off-axis- this might be wrong although it's probably worth looking into
3) The character animations were really well done, although sometimes the character would rotate itself 90 degrees and just stay in that orientation for the rest of the round (likely a bug with the anti gravity buttons)
4) Although the sound design and UX overall is good, having to wait 1-2 seconds and hear an indecipherable sound effect every time the player dies can make the experience a little frustrating (and often waters down the rewarding feeling of finally unlocking something like a keycode!)
Overall though, it's a pretty innovative game, and would love to see what you can do with it in the future. Good job and good luck! :D