Acquire Waffle Weapons!
Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)
9/29/2010
7:31:55 PM
Very Rare 5.6%
Perkaholics Anonymous!
Survive until round 20 without buying a single Perk. (Map Pack 3 only)
9/29/2010
7:17:27 PM
Ultra Rare 4.7%
Quick Learner
Full-Combo any tutorial exercise (no missed notes or overstrums)
9/28/2010
7:33:28 PM
Very Rare 8.9%
Lucifer's Accountant
Beat any song with a final score which is evenly divisible by 6 (Quickplay+)
9/26/2010
12:35:18 PM
Common 62.7%
Anthemic Archivist
Expand your song library to at least 115 songs of any type. Be creative!
9/26/2010
11:02:35 AM
Rare 17.2%
Gold Master
As a single player, earn Gold or higher on three or more Challenges on a single play of a song (Quickplay+)
9/25/2010
5:09:04 PM
Rare 25.3%
Big Brawler
Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)
9/25/2010
12:47:57 PM
Ultra Rare 3.5%
Weapon of Minor Destruction
Kill no more than one zombie with a nuke. (Map Pack 2 only)
9/24/2010
4:57:30 PM
Very Rare 7.0%
Der Electrician!
Link all teleport pads before round 7. (Map Pack 3 only)
9/20/2010
5:07:21 PM
Very Rare 7.6%