Neat game.  The music is a bit unpleasant.  I wish that holding the jump button would allow me to jump higher/longer, but this didn't seem to be the case.  My first few games were extremely short (a few seconds); you might want to make it a bit easier/safer at first.  And though I did collect some stores (?) a few times, and activated them by pressing 1, I couldn't figure out how to actually use it.

High Score: 80