Good job on your first GWJ. Good art and music.
The placement of next level is not good. I could not find it for a while and pressed quit a couple of times without knowing.
The shooting is not fun, the reload time to shoot another bullet is too long. I would like it more if we can spam the bullets much more faster.
The enemies went by too fast and sometimes when they escape the level finished. It would be nice to make them appear again on the screen to try again a couple of times before moving on.
Keep up the good work and hope to see you on next jam!