Kill 3 enemies with one shot.
Shoot every type of enemy at least once.
Shoot 5000 enemies in total.
Destroy 1,000,000 blocks.
Finish a destroy the object level without killing an enemy.
Finish the single player campaign.
Fight the final boss and fail miserably.
Shoot 50 zombies, 50 robots, 50 pirates and 50 soldiers.
Use every power-up at least once.
Get 50 longshots.
Defeat the first boss in the pirate theme.
Shoot 20 enemies in 60 seconds.