Nice platformer, controls are smooth.
At first, when I was playing I haven't fully discovered mechanic with moving mouse to see other side of the room, to locate switches and traps, so just by jumping on different platforms I've turned on the lift and went ahead, it repeated up until I've reached 3rd floor when I lost immediately. Once I've discovered it was very helpful ahead. Though I wonder if you should make objects interactable if they were discovered, but not sure if there was an intent to allow for passing without discovering.
Really good job for a first jame!