Xbox 36051 out of 68
Find all required intel to help Eden Prime's colonists.
Xbox 360 Action25 out of 63
Obtain one of each ribbon in the game
Xbox 360 Driving6 out of 12
Complete the 200 HP Series
Xbox 360 Adventure20 out of 20
When Pigs Fly
Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.
Xbox 360 Driving1 out of 33
Pass the D License Test and get your first bike.
Xbox 360 Puzzle14 out of 20
Ding! Double Digits!
Level up to 10
Xbox 360 Action69 out of 80
My Pet, Monster
Complete all missions for "The Trouble With Clones..."
Xbox 36025 out of 49
Find all primary Alien Council Races, Extinct Races and Non-Council Races codex entries
Xbox 360 Action18 out of 23
Complete a solo mission without firing a shot.
Xbox 360 Action22 out of 69
The Rotten Apple
Complete Desmond Sequence 4.
Xbox 360 Action16 out of 44
Complete the level The Maw on any difficulty.
Xbox 360 Action31 out of 76
Earn 1 star in Special Ops Mission Mode.
Xbox 360 Action41 out of 50
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
Xbox 360 Action19 out of 47
Over the Hill
Reach experience level 50 in Xbox LIVE