I like this game XD
The first time I played it on Mozilla Firefox, it lagged so much making it unplayable. Even the brick didn't load properly.
But, when I played it on Chrome, somehow it can play the game normally.
I like the cannon tile that you implemented. Sometimes, I can get launched very high.
Especially in this position when you time your jump correctly.
The story also simple and interesting. I liked the ending very much.
The only problem that I has is the underground part.
I can't see the character at all. Maybe make the underground part semi transparent, so at least I can see the pink ribbon to know the character location.