Like other people in the comments, I would've liked to have checkpoints. That being said, once I knew how to solve a puzzle, it was pretty easy to just go through all the other puzzles. I did like the commentary every time you failed. I thought that visuals were nice but I think there should've been some music. Maybe a little thing but I was a bit disappointed that the trap always came in the form of spikes. I would've liked if you were sometimes dropped into a pit. I must admit, though my mind was screaming at me to not go for the obvious thing where I came to the lava room, I still tried to jump on the platform.