I wish I could leap over people's heads when they walk towards me on the sidewalk; it would save so much trouble! [Joke]
That was fun! The art is charming, the mechanics are competent, and the story is cute. I always like a platformer with a good quick-fall mechanic!
Some objects, particularly balloons, were a bit hard to see against the background at times. I also had to reset once after the A and B inputs got stuck on "On".
Good work!