Wow it was fun, like the previous commenter I enjoyed a lot more than I thought I would because the gameplay loop is very simple and engaging, and you constantly ramp up the difficulty.
The first time I didn't really understood the feedback meaning there were objects out of the bounds of the camera, forcing me to move. Maybe it could be a more impactful? But that neither made me lose nor stop me from having fun so it's perfect! I also would I liked knowing the number at the end of a run when I lose.
Thank you, it was very fun, it makes you want to play again over and over to train your mental skills!
Great job!