It's okay. Here are some thoughts:
Good:
- The art is great.
- The levels are very well designed.
Bad:
- The controls aren't great. Space to jump? Why not up arrow or W? That should at least be an option. Plus, using arrows and space (which I already find unnatural) and then having to reach up to E to perform actions isn't smooth at all. The game is using too much space all over the keyboard to no benefit.
- Wall sliding fells really stiff and awkward. This is probably due in part to the complete lack of a wall slide animation (character just holds jump/fall animation while sliding). It feels weird and lazy.
- Hit detection feels odd. Spikes seem too easy to hit and blades seems really easy not to hit.