I liked the environment, albeit only from blocks.
Ragdoll at the time of death - cool!
Where are the sounds? Its really need at least one background music.
Cool system when the camera shows an open door.
The dash is steep, but it is inconvenient to press F when moving to the WASD.
The game clearly lacks checkponits.
During parkour, the animation goes too far forward.
It is a pity that there was not enough time for the 3D model. I imagine something like of "INSIDE".
I love that the platforms light up when you stand on them.

I liked the overall concept. Try my game. I did it on an unreal engine too!

Fun game! I would like to hear this game with music and sound effects. Jumping felt kind of weird sometimes and when you climb over the pink block your character kind of moves through it a little bit. I like the 3d art you're going for in this genre! 

Nice game (I find it pretty hard though)