Comment from my review :
Hello!
Congrats on this work! The game's atmosphere is really dynamic and intense—I really enjoyed that!
From a design perspective, I think the flow mechanic with the shift key is really cool, and the FX make it feel super satisfying! The die-and-retry aspect is also smooth and well-executed, I must have died at least 100 times without even noticing! 😆
As a suggestion for improvement, I would make the early levels a bit easier to help players get used to the mechanics.