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

Use the Omega 4 Relay

Hack a geth collective

Reach Level 30 with one character

Survive all five waves in the battle for Object Rho ("Arrival" downloadable content)

Gain the loyalty of the biotic Convict

Gain the loyalty of the krogan

Gain the loyalty of the quarian

Fully upgrade a weapon

Gain the loyalty of the Cerberus Officer

Successfully recruit the Justicar

Successfully recruit the Quarian

Shoot and kill 20 enemies while they're knocked back by a punch