Really simple, short game and has relaxing music. I think the tutorial could be explained better; you have to tap INSIDE the little squares, not on the screen itself. Another thing is that you need to make sure you tap to the BEAT, not when you think the ball is going to go into the square. There is some delay in between, so go with the beat.
I had the same issues with playing the game at first like other reviews, but I think my performance slightly improved when I turned off the camera movement and zoom in the settings, so hopefully that works for you too.
Overall, I like the music and vibe of the game. It’s really simple and can be played at any time. You can re-play songs after you finish them in story mode and set different game rules for them, so there’s some replay-ability.
Some things I would suggest is definitely a redo of the tutorial section so people don’t get confused. It also feels like the story isn’t finished, and I’m not sure if the developer is planning on adding more info? I do wish more could be explained about the main character though. One last thing is a zen mode where you can play infinitely without strikes, which would be nice.