The fullscreen doesn’t work on the randomizer view for some weird reason, so I had to go directly to your game’s page in order for it to work. The fix should be easy though, just change the “Viewport dimensions” on your game’s page on itch.io. It seems to be at 640x360, when, after reviewing some of the dimensions of the page, your game seems to need to be at 960x600.
With all of that aside, I liked the variety of the challenges that you’ve prepared for each level, most of them were unique and fun. The movement felt a little weird at first (in the first coin levels), but after playing some other levels, I realized that it actually feels good with the speed of the game as a whole.
The sound FX at the end were.. a surprise.. haha But great job! Pretty creative use of the assets!