Hello !
Nice little reflex game. The core loop is immediately understandable and the randomized card positions help keep each run slightly different.
The audio works really well: upbeat without becoming tiring or irritating.
My main issue was readability. I found the pixel font a little difficult to read in places.
I played about three runs. After that, I felt I had mostly seen what the game had to offer because the only longer-term goal seems to be beating my own record. Some additional goal, comparison, challenge, or progression layer could potentially give players more reason to come back.
Overall, simple and pleasant to play.