Find all the hidden collectibles.
Unlocked: 26 Mar 2011 02:26:40
STORY TELLER
20Watch each comic without skipping.
Unlocked: 26 Mar 2011 01:47:27
Unlock every level and defeat the final boss.
Unlocked: 26 Mar 2011 01:45:30
SPEED DEMON
15Get 100% score with the trap.
Unlocked: 25 Mar 2011 19:30:41
HERO
10Revive any teammate 20 times.
Unlocked: 25 Mar 2011 14:26:43
Finish a chase level with at least 75% of the Ecto-shield up.
Unlocked: 25 Mar 2011 01:09:31
Defeat the Subway Smasher.
Unlocked: 24 Mar 2011 22:57:41
FULL HOUSE
20Finish an online level with the help of 3 other players.
Unlocked: 24 Mar 2011 00:34:14
TEAM OF FOUR
15Play with each character.
Unlocked: 24 Mar 2011 00:22:06
COLORBLIND
20Kill a Slime Abomination with the wrong weapon.
Unlocked: 24 Mar 2011 00:09:26
ROOKIES
10Finish the first level.
Unlocked: 23 Mar 2011 22:51:38
ROCKSTAR
10Destroy all the expensive LCD televisions in the hotel.
Unlocked: 23 Mar 2011 22:45:21