Spawn 10 Sidekicks in Multiplayer

Defeat 50 enemies from-the-hip or blind-firing

Defeat 1000 enemies

Just prior to City Chase, stand perfectly still for 30 seconds (stage demo fail)

Play with the lemur in the market and let it steal your apple

Pull 20 enemies over when hanging from a ledge

Find a Journal Note

Defeat 50 enemies with headshots

Defeat 20 enemies with headshots

Find a Treasure

Complete all Hammerlock's Hunt side missions.

Complete the mission "The Fall of Nakayama".

Complete the first rank of all non-level-specific challenges with a single character.