Black Panels:
     During  gameplay  press  R3, L3, R3, R3, L3, R3, L3, L3, R3. When
you begin a new game, you'll see black panels.

Blurry Mode:
     During  gameplay press R3, R3, R3, R3, L3, L3, L3, L3, R3 to turn
everything blurry

Transparent Panels:
     During  gameplay  press  L3, R3, L3, L3, R3, L3, R3, R3, L3. When
you beging a new game, you'll see transparent panels

Tunnel Mode:
     During  gameplay  press L3, L3, L3, R3, R3, R3, L3, R3, L3 to see
things a little differently. Repeat the code for another new view

Turn Notes into Monkey Heads:
     To  turn the note gems into monkey heads, L3, L3, L3, L3, R3, R3,
R3, R3, L3 during gameplay

Unlock Freq Parts and Prefabs:
     Beat  the  boss song of any level to unlock extra Freq pieces. In
addition, you can finish the Bonus Song on each level to gain new Freq
parts and Prefabs.

Scramble gem positions:
     X + X + Left + Left + R3 + R3 + Right + Right

Graphics FX 1 - Monkey Gems:
     L3 + L3 + L3 + L3 + R3 + R3 + R3 + R3 + L3