With 617 Code Blocks... Press "Start" to start a round. Click to shoot, you can also move left/right with arrow keys. Shoot the jets and stop them from reaching your base! While in a round, click the "X" in the bottom-left corner to exit. On the menu, click "Upgrades" to go to the upgrades screen. (Currently there are only two upgrades: Damage and Fire Rate.) When on the upgrade screen, click the "X" in the bottom-left corner to exit. Have fun! This only took about 5 hours!
