Your game is a lot of fun! I don't know if it is intended but the rolling animation gets me each time I jump!
The graphics and music are good, the sound effects are working, the gameplay is really pleasant and the level design is nice.
I think that Gal is a bit overpowered (projectiles in general). Also, I found a bug (maybe you know it): when you stand at the edge of a blue roof, your character begins to roll for no reason.
Good job!