Go Forth And Multiplay
Go to multiplayer in the menu, and select Xbox LIVE. It doesn't matter how high you get ranked.
Nice Beating You
Play single player campaign mode and reach level 10. Defeat Blockbeard to unlock this achievement.
One Meeellion Blocks
Destroy a total of 1.000.000 blocks. All blocks you destroyed from all levels are counted.
I'll Show You Fits Of Rage
In any level, online or offline, kill 20 enemies within one minute to unlock this achievement.
You're Like Some Kind Of Robot
Kill a total of 50 enemies with a longshot. All longshots through the entire game are counted.
Been There, Shot That
Use all 20 power-ups in the game, including the red power-downs. The tutorial level doesn't count.
Two Thumb Master
Play through all 80 single player levels successfully to unlock this achievement.
On A Gamer's Diet
Shoot 50 zombies, 50 robots, 50 pirates and 50 soldiers. All levels online and offline count.
Natural Born Gamer
Kill 5000 enemies throughout the game to unlock this achievements.
The Things I've Seen
Kill all different types of enemies in Rocket Riot to unlock this achievement.
You Can Handle The Riot
Play endurance or co-op with friends, and beat level 50 to unlock this achievement.
One Shot, Thrice The Score
Kill 3 enemies with one shot.