The mechanic of switching between two versions of the same map was really creative and ties into the theme really well! It was really fun exploring the rooms while trying to spot the difference and find where all the different items go! I liked that the game tracks how many times you swapped and used the stairs. I played through the game twice and once you know where the items are, it gets really satisfying trying to find the optimal route to do it quickly. This would be a really cool idea to expand upon and maybe add some kind of scoring system for replayability! Overall, nice job!