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Sonic the Hedgehog Clear the Sonic story.

Friendly Fire Issue an online challenge to a friend

Re-Armed Deliver the Golem's replacement arm

Centrifugal Convoy Adjustment System Passed through the same portal 15 times

Banner Banned an Object

I eat asteroids for breakfast Complete Commando mode

Tycoon's Superiority Kill 1000 feral zombies

Scientits Earn a 1,000,000 pinball score on the Scientits pinball machine

Purveyor Of Fine Goods Get 250 Kills with Exotic Weapons in Co-Op Campaign or Endgame

Oh, Thank You! Save Barbara from a jail cell in The Punisher.

Hard Bizkit Beat the game without rolling rolling rolling (in No Roll mode)

Tables Turned In Rave in the Redwoods, kill the Slasher with his weapon.

Scarred Hero Complete R-Type II

If It Bleeds Win 25 matches in Hunt.

Hunter/Killer In a single game, shoot down one of each alien craft.

The Wall - Guerrilla Complete chapter 4 on the Hardest Difficulty in the Single Player Campaign

Time for a Makeover! Change your costume.

All Skilled Up Unlock a tier seven skill.

Super Hard Get an "S+ Rank" on Hard.

Indiscriminate Looter Pick up 50 Cursed Items

Stadtjäger Down In The Shadowed Throne, defeat the Stadtjäger.

Deathraven's Chosen In The Frozen Dawn, survive the trials of the Deathraven.

Intermediate Earn Gold medals on all Critical Urgency levels

Dancing Fool Dance 100 Times

Breaking the 4th Earn a x4 multiplier in Challenge Mode

Single Quarter Complete the single player campaign with less than three deaths.

Is it warm in here or was that you? Complete the game on Hell difficulty

Crank Up the Gain Complete "Plankerton Storm Shield Defense 6"

Not a Prayer In The Shadowed Throne, after round 20, survive at least two full rounds without anyone leaving the church.

Going Downest Open the shortcut to the Fourth Chamber

For Science! 1,000 Portal Transitions

Grim Reaper Defeat over 10000 enemies.

Tenfold Summoner Sheena has obtained 10 titles. Mysterious in an assassin way?

Soul Stealer Kill 50 Zombies with the Life Drain from a Disciple Injection

Hero in Training Pick each character in Arcade Mode.

Welcome To Everything Everything finally begins

Joy The Ride Fly with the Jet Pack for 10 seconds in a row

Devoted Follower In Ancient Evil, survive the first 20 rounds without leaving the interior of the Temple of Apollo

Ambidextrous Solve a puzzle with the robotic arm.

Untouchable Defeat a guardian without taking any hits

The Kid You unlocked The Kid!

Path of Humanity Clear Stage 7 in God of Destruction mode.

Fellowship of the Ding You took part in a level-up while in a four-player game.

Hammer of Infinite Fate Tourist Played a multiplayer game on all Hammer of Infinite Fate multiplayer maps.

Rag Doll Expert Earn Silver on all challenges

Extraterrestrial In a public match, complete the generator at the main building on Toba Landing and escape.

Fully Functioning Knee Complete all Adventure Boards for a single day

Forever Fated Find your destiny in the Room of Fate in Dead Ops Arcade

One Batch, Two Batch, Penny and Dime Complete The Punisher. (Continues OK)

Saving My Quarters Beat Arcade mode without using any continues.