I will add more skills which derive from more enemies :)
Currently looking into a better way to handle movement, wall-slide and wall-jump. But it's still on pen and paper stage.
I'm glad you found possession interesting.
I agree that level in this game fits much better, especially because of the difficulty.
Checkpoints will be required to keep most player not exiting the game.
Thank you very much for your feedback, it's worth a ton :)