Complete a full issue without taking any damage.
Unlock Lori's entire skill tree.
Use Lori's Assassinate skill to KO 50 enemies while invisible.
As Rick, KO 50 enemies with thrown objects.
Earn 75K points in Survival mode.
KO 100 enemies by throwing them against the panel edges
Sustain a 6x multiplier for 60 seconds.
Unlock Rick's entire skill tree.
Defeat the final boss in any mode (Story or Co-op)
Complete 5 Story issues in Co-op mode.
Complete any Story issue in Co-op mode.
Upgrade a skill for either Rick or Lori.
