Cool concept, and decent execution. It's immediately apparent what to do and how to get points, so kudos there. There is occasionally a glitch where 1 enemy (bread?) will become invulnerable to the barrier and remains that way no matter how many times you hit it. I think it happens when the barrier comes up while one of them is touching you, but I'm not sure. Other nitpicks, the UI and general visual style need some improvement (even though the choice of jam was a nice pun) along with a longer or less repetitive soundtrack, the Highscore just shows the most recent score - not the highest, and some more depth in the future could go a long way.