Competitive (15) Win 30 Xbox Live versus games.
Cooperation (10) Achieve a score of 15,000 during an Xbox Live CO-OP game.
Fifteen Grand (15) Obtain a personal score of 15,000.
Five Waves (20) Make it to the 5th wave.
Getting Better (15) Make it to the 3rd wave.
Mutant (10) Shoot 5 mutants in one game.
Nice Catch (15) Rescue a human with a mid-air catch.
One Wave (10) Make it to the 2nd wave without losing any humans.
Protect All Humans (25) Lose no humans in the first 3 waves.
Run! (20) Survive the first 75 seconds without shooting, bombing, or teleporting.
Twenty-Five Grand (25) Obtain a personal score of 25,000.