Earned 5 Stars on the Simple Challenge at any Skill Level.
Had 1000 Freestyle photos taken.
Passed these moves: Snake, Snap Groove, Step Center, Step Side, and Tap Front.
Earned Gold Stars on any song, at any Skill Level.
Played a song with every human dancer character in Perform It! or Dance Battle mode.
Progressed past the "Wallflower" rank.
Earned 5 Stars on the Warm Up Challenge at any Skill Level.
Gave your first 5-Star performance in Dance Battle mode.
Got a "Flawless" rating on a finishing move.
Strung together 10 "Flawless" moves in Perform It! or Dance Battle mode.
Gave your first 5-Star performance in Perform It! mode.
Had a Freestyle photo taken while 2 people are dancing.
Play with a toy that your animal has brought you.
Enter your first contest.
Choose your first animal in your own game.
Scored 15,000 points in Score Attack Firefight Matchmaking.
Reached the rank of Corporal in the UNSC.
Completed a Weekly Challenge.
Earned a Killing Spree in multiplayer Matchmaking.
Completed the 2nd mission on Normal or harder.
Killed 10 enemies in a Firefight or Campaign session with the DMR.
Used a Health Pack to replenish life after taking body damage.
Completed the 3rd mission on Normal or harder.
Completed the 4th mission on Normal or harder.
Win after being behind in the last 2 min of a game (no OTP, min qtr. len. 3 min)
Hit the farthest target at least 3 times in 1 Launching Loathers game.
Win the game.
Win a race without using a Fiesta Missile, Colored Water Bomb, or Smoke Bomb.
Complete a multiplayer game offline.
Hit 3 speed strips in a single race.
Win 1 race.
Win a race without using any shortcuts.
Hit every player with a power-up in a single race.
Use the Buzzlegum Honey Slick power-up 10 times.
Use the Flutterscotch Wings power-up to overtake an opponent.
Complete level "Treacherous Waters" 100%.
Defeat 250 Enemies.
Make it through an entire level without blocking an attack.
Complete the first level of the game - Secret Plans.
Survive the Dead Center campaign.
Use a bile bomb on a Tank.
Kill a Jockey within 2 seconds of it jumping on a Survivor.
Earn 4 stars in Special Ops.
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
Earn 1 star in Special Ops.
Kill 2 enemies with a single bullet in Single Player or Special Ops.
Record 3 tackles for a loss on Adrian Peterson. 5 min qtrs, All Pro (no Pro Bowl, no co-op)
On Citadel, found the hidden skull.
Completed Data Hive and unlocked the Chasm Ten Firefight mission.
Found all the hidden skulls on the Mythic maps.