Made it to only 16s left, The game is fun.
Tbh the fun comes after the first two time period because before that you can just hug a wall and you will destroy the ship arriving before it can shot at you.
For me adding a score system and making the ennemy more likely to spawn next to a wall will make the game more fun
The art is for the most part good and I really really like that our ship shoot two canonballs, it is a great decision.
Overall nice game !