Nice and simple puzzle game, straight to the point. Player hit bounds arent represented well, I kept dying to spikes because of that, until I tested the player hit bounds myself. I was looking for the "restart" button at the boxes part because I failed at first try, so I reloaded and then later found out there are spawns at spawn. You should really put an escape menu that lets the player restart from anywhere at will, or just R to restart keybind. Boxes felt like they were sliding on ice, anyone looking a wooden crate expects 0 sliding. The visuals are nice and consise, but the music doesnt match as well. For the theme itself, it fits it nearly dead on, generic underground environments, spikes and pillars everywhere. The telegraph on the skeleton enemies that shoot is a very nice touch, its good that they have the pullback animation before shooting, it would be even better if the trajectory of the arrows was communicated a bit better. It looks straight, but people are going to mix up at what Y level the arrows are actually going to be. This is because players arent actually going to look at them, since the behaviour is the same every time, and there is no reason to observe the enemy, theyre instead going to focus on timing the crossings.
Overall, nicely executed.