Complete Sequence 3

Get all the Omega Weapons including the Rhynocerator

Complete the Qwarktastic Battle in Annihilation Nation

Infect 30 Enemies with the Infector Gadget on Mylon

Get all Qwark Tokens (100%) on all Vid Comics

Cleared 10 unique side missions.

Collect 10 Million Bolts

Win a session of a team mode (Multiplayer).

Collected 25 different weapon types.

Defeat Scorpio with only the wrench in Annihilation Nation

Complete a Challenge (Multiplayer).

Collect 1 Million Bolts

Defeat Dr. Nefarious in the Final Battle