Major Fiasco
Not unlocked yetComplete Level 10 in Chaos mode.
Captain Chaos
Not unlocked yetComplete Level 15 in Chaos mode.
Admiral Anarchy
Not unlocked yetComplete Level 20 in Chaos mode.
Sergeant's Laughter
Not unlocked yetComplete Level 25 in Chaos mode.
Chaotic Good
Not unlocked yetComplete Level 30 in Chaos mode.
Chaotic Awesome
Not unlocked yetComplete Level 35 in Chaos mode.
Chaos Theory
Not unlocked yetComplete Level 40 in Chaos mode.
It's a Ladder
Not unlocked yetComplete Level 1 in Chaos mode.
Dischordian
Not unlocked yetComplete levels 1 through 5 in Time-Attack Chaos mode.
Shiver Me Timbres
Not unlocked yetComplete levels 6 through 10 in Time-Attack Chaos mode.
Tone Color
Not unlocked yetComplete levels 11 through 15 in Time-Attack Chaos mode.
Veteran Ear
Not unlocked yetComplete levels 16 through 20 in Time-Attack Chaos mode.
First Chair
Not unlocked yetComplete levels 21 through 25 in Time-Attack Chaos mode.
Band Leader
Not unlocked yetComplete levels 26 through 30 in Time-Attack Chaos mode.
Front Man
Not unlocked yetComplete levels 31 through 35 in Time-Attack Chaos mode.
Conductor
Not unlocked yetComplete levels 36 through 40 in Time-Attack Chaos mode.
Composer
Not unlocked yetComplete all Time-Attack Chaos challenges. Unlocks the Zither instrument.
Aural Endurance
Not unlocked yetComplete 10 level-5 puzzles in Endless Chaos mode.
Sonic Stamina
Not unlocked yetComplete levels 10 level-10 puzzles in Endless Chaos mode.
Cacophonous Constitution
Not unlocked yetComplete 10 level-15 puzzles in Endless Chaos mode.
Sound Sticktoitiveness
Not unlocked yetComplete 10 level-20 puzzles in Endless Chaos mode.
Tonal Toughness
Not unlocked yetTonal Toughness 10 level-25 puzzles in Endless Chaos mode.
Chord Crusher
Not unlocked yetComplete 10 level-30 puzzles in Endless Chaos mode.
Interval Interventionist
Not unlocked yetComplete 10 level-35 puzzles in Endless Chaos mode.