I really enjoyed playing through this prototype/tech demo, it's a really clever idea and I think there is a lot of potential for fun puzzles. And i really liked seeing that the same goofiness from OPP is in this game as well. One minor thing I do want to mention is that the design of the map where you select the room to go to felt very similar to Slay the Spire, which kind of put me in a roguelike mindset and it took me a little bit to understand that the room layout wasn't supposed to be randomized.
Also, I don't know how well it would work but I think having the rooms hidden or not knowing what's in them until you go in each one for the first time could be a nice way to add an exploration element to the game.