Great game for your first game jam, especially such a fast-paced one! It’s a solid endless runner with plenty of mechanics—it turned out great.
Here’s what I’d tweak:
1. It’s really important to me that the score keeps going up, but mine kept decreasing >_<. I ended every level with 0 points, which kind of killed the mood for me.
2. The option to choose music is cool, but it would be better if a track started playing by default as soon as the game begins (for me).