I enjoyed the difficulty and puzzle mechanics of the game, it stayed interesting and I felt accomplished after solving each puzzle and beating the levels. I overall really enjoyed the game and think that it is very well fleshed out, however, I would like to see a bit of lore added to maybe the beginning of the game or before each level, so I know why The character is there and what the goal is. I stopped playing at level 4 because I could not figure out how to solve the puzzle but I left with the feeling of wanting to go back and finish the game when I have more time. I noticed that the blocks you can interact with, look a little dark depending on the monitor, so I think it would be beneficial to choose a color that has a stronger contrast to the background. I noticed late in the game, that the distance you stand from a block changes how far you can push it, I think a note to the player could avoid a lot of frustration that the player has from dying by getting to close the spikes before they realize this.