What a goofy and fun little game! I had trouble with the movement: my character walked slowly and seemed to get slower as the game went on. But I love the music and it definitely hit the notes of a classic retro game.
Did you also use GBstudio?? I had trouble with player speed slowing down from day 1 but no amount of toggling update/on init variables seemed to fix it before the deadline. Maybe I just had too much going on in the background.