PC Action1 out of 12
Melee Is Best
Defeat any end boss without using any magic.
PC Action59 out of 1346
Destroy two tanks within 5 seconds of each other.
PC Action6 out of 45
PC Action13 out of 153
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
Xbox 360 Puzzle4 out of 8
Finish a puzzle without using any pencil marks.
Xbox 360 Puzzle4 out of 10
Do flowers really explode
Die 20 times in any single session.
Xbox 360 Puzzle14 out of 49
Complete 100 songs in Quickplay
Xbox 360 Action6 out of 50
Tag, You're It!
Perform and land a Tag Combo
Xbox 360 Puzzle3 out of 12
Surround one piece with six same-color pieces.
Xbox 360 Action3 out of 53
Continue playing to unlock this secret achievement.
Xbox 360 Action1 out of 12
The Terror Begins
Escape from the graveyard of terror.
Xbox 360 Action4 out of 47
Use X-Factor in a match. (ArcadeXbox LIVE only)
79 out of 713
Pop the Clutch
Stp VIPER's research into psychic and super-human phenomina at "The Clutch"
PC Action30 out of 47
Solve 85% of Riddler challenges