I like the idea and how you've implemented the system into the game, however I don't think it's appropriate to just rip off the sprites from google images. I highly doubt that you've drawn that by yourself nor have permission to use that sprite.
Gameplay wise, it was annoying how I had to look at the "transition" animation every time I hit the disc. Perhaps you could speed up the transition times or maybe even consider disabling the whole thing?
The UI is also stretched/broken in different resolution (but mostly in full screen mode).
Visually, it would've been better if you could add extra effects upon hitting a disc. A good example would be a slight screen shake.
You did a relatively good job, though.