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