All-star Team-up - 10 gamerpoints - Completed a Story issue in Co-op mode.
Bagged and Boarded - 15 gamerpoints - KO'ed 50 enemies with thrown objects.
Epic Crossover - 15 gamerpoints - Completed 5 Story issues in Co-op mode.
Femme Fatale - 20 gamerpoints - Unlocked Lori's entire skill tree.
Golden Aged - 20 gamerpoints - Earned 75K points in Survival mode.
Gutter King - 15 gamerpoints - KO'ed 100 enemies by throwing them against the panel edges.
Liver Thief - 20 gamerpoints - Unlocked Rick's entire skill tree.
Pristine Mint - 20 gamerpoints - Completed a full issue without taking any damage.
Secret Origin - 10 gamerpoints - Fully upgrade any skill.
Shadow Artist - 15 gamerpoints - Assassinate 50 enemies while invisible.
Silver Aged - 15 gamerpoints - Sustained a 6x multiplier for 60 seconds.
Squarebound Saga - 25 gamerpoints - Defeated the final boss.