I really like the mix of 2D and 3D art styles — it works surprisingly well together. In level 2, my lungs kept draining and I honestly didn’t understand why. I think I am supposed to rush toward the end.
Thank you! As for level 2, whenever it plays a little beep sound effect and the lungs flash yellow, you have to press R to regain the oxygen you are slowly losing (losing all of it restarts the level).