THIS GAME IS GREAT!
you should really expand the whole idea of this project.
add a story, enemies,allies and stuff.
you can even make it romantic like this is a samurai who's looking for his kidnapped gf or something or he fell in love with a monster which he's supposed to kill or something.
Or make it stupid like the way you get more jumps make it infinite. player get's infinite amounts of jumps gradually and the higher the player goes the wider is the space between panels.
suddenly he is in space and is jumping over plants wow lol
LOVE YOUR WORK!