Interesting concept, I think the act of picking up bonuses was a fun idea, and the multiplying bears adds some complexity. I like the changing levels as you progress too. The ending screen also looks cute.
I got confused how things work the first playthrough though because I couldn’t tell what the bonuses were at first. Some bonuses had red icons like the heart, or blue like the shoe, and I had to play again to realize the key was the backgrounds. The sfx for picking up an item successfully also sounded to me like a failure, so I got confused for a bit.