Today I’ve implemented some experience and upgrades system for cannons and created some really nice background music. The game is starting to look and feel very nice!

You get experience when you hit enemies (of course you get only one xp point per hit 😉 ), and when your cannons level up they shoot faster, and every fifth level they get one extra bullet per shoot.

Still left to do: other enemy types and high scores (maybe I would add some global leaderboard if time allows!).