Kill three enemies with a single ‘bowling’ ball.

Promote a multiplayer character to the Galaxy at War or import an ME3 character.

Modify a weapon.

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

Make the final assault.

Establish or rekindle a romantic relationship.

Finish all multiplayer maps or all N7 missions in single-player.

Complete three multiplayer matches or five N7 missions.

Survive the swarm.

Escape a Reaper in the galaxy map.

Call down an orbital strike.

Sabotage a dreadnought.