Very cute game, but unfortunately very short right now. The view feels a bit too cramped, and especially running is just way too fast considering how little you can see in front of you. It's basically only useful once you know the level layout.
I like the playable main menu, but the items are too close to each other so the game occasionally highlights resolution and controls at the same time. Space them out a bit more or make sure only one item can be selected at a time.
I played an earlier demo and see you've already addressed the spike visibility, which is good (although the red bits make the spikes look bloody and gruesome, not sure if that was the intention). There are also still some hard to read spikes that are inconsistent, such as these: