I love the premise and theme implementation - especially how every level encompasses the same like 'ONE ROOM' and morphs into the next one. Level Design was another good thing about this entry, like how the moving blue platform was slowly introduced and such.
However Gameplay wise the character felt 'floaty' rather than precise, which would be desired in an obby game such as this. Implementing 'Coyote Time' would also really improve the Gameplay.
The Sound for me was extremely quiet, and some background music could've really elevated the experience. The Art was alright - however a Toon Shader could've improved it.
Solid job overall!