This was a great game! It controlled smooth, felt nice, and the game design for each floor was different but fun. Innovate use of being able to pick up doors and place them and I like how you had doors with restrictions for puzzles. I do wish I could pick up keys or activate doors when I press the "E" key next to them as well instead of having to hover my mouse over them, but that's a small critique. Also, I know this is kind of odd, but I really liked the way you laid out the UI!
Very fun use of the theme and the game felt great, good job man!