Nice game! Here's my feedback.
The presentation is top-tier. The game is very fun but super hard after the first level.
The ball appears too small for the character after dying.
The game respawned me under the level twice after dying from the robot in the first level.
I think at some point the green collectibles became invisible.
Sometimes I made the camera turn 180 degrees with one button press? I'm not sure if that's a bug or I did something wrong.