A nice quick game to pass by time, music is great and fitting ,and sound design is very great, it gets very repetitive overtime though(understandable since adding lots of levels in a jam game is not really something anyone can do) The only thing i would recommend adding is adding an impact when the bullet hits the enemy, current thing is just the enemy flashing, i would like more feedback when the enemy gets hit especially when the enemy dies, it tells the player that they have accomplished something.