Visit a store in the single-player campaign.

Evolve any of your powers to rank 6.

Start a character in multiplayer or customize a character in single-player.

Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1

Use the Omega 4 Relay

Fully upgrade a weapon

Confront the Shadow Broker

Successfully recruit the Justicar

Gain the loyalty of the Cerberus Officer

Gain the loyalty of the quarian

Gain the loyalty of the krogan

Successfully shut down the rogue VI in Project Overlord

Successfully recruit the Quarian