Select a Power.

Perform 10 Target Actions (Arcade)

Survive to Round 5

Gain a level in the Assault tree during an assault.

Get an S at the victory screen

Perform a Level 3 Super Attack

Raise your threat level by committing a crime that attracts police attention

Reached level 50

Completed Unintended Consequences

Completed Round 5 of any Circle of Slaughter

Kill 500 zombies.

Struck by lightning 10 times.

Win without taking any damage.