This was a very fun game! I hope to see more of it in the future, if I were to give any criticism, it's that the red of the cube is the same saturation as the blue background, making it a bit hard on the eyes on levels where you speed up. Maybe desaturate the background to help the cube pop just a little bit more?
Other than that I think it's a super fun game and it would be great to see more of this one level!