The bear sprite is cute. The overall style of the game is appealing.
I couldn’t find more than the first key. That was after getting stuck in the platform several times. Refreshing the page helps free the character. But unfortunately, I couldn’t get far enough to tell what’s meant to be unexpected and what simply isn’t working yet.
Oh, another like: I feel the music goes well with the basic style. It’s pleasantly tense in an elementary way, which fits.