- Edited
Awfy I gave demo a go. Went through all 10 levels twice. It's good. Quite hard but easier than expected, though from the looks of it I expected ultra hardcore.
There was a bug (or feature) I couldn't replicate. In the second part of tutorial I fell down from the right platform and the screen went white. The game become completely unresponsive but not fully frozen as crt glitch animations were running normally. Needed to restart.
Sliding up the walls mechanic is not communicated clearly enough. I completed the first playthrough totally unaware of how it works, just winging it. Perhaps it needs to be directly stated that the closer to a wall you jump the higher you slide up. Maybe best to do it in the tutorial as you need to use it there.
The tutorial rooms with sliding walls are a bit disorienting, given that these may be the first areas the player encounters. It does look cool though. Maybe have full walls drawn a bit fainter and keep those sliding highlights for effect.