Amplitude (PlayStation 2)

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Black panel surfaces

Press R3, L3, R3(2), L3, R3, L3(2), R3 during game play. A sound will confirm correct code entry. Start a new game to have black panels.

Black track

Press [R3] on the screen that appears after the game loads your data from your memory card. A sound will confirm correct code entry.

Blur Mode

While playing a game, press R3(4), L3(4), R3.

Bonus song

Complete all songs, including the bonus songs on "Insane" to unlock the hidden bonus song "Spaztik" by Cosmonaut Zero. Note: This song's tracks last twice as long as every other song.

Fast freestyle

If and when the freestyle line is straight and not meshy, hold Square and hold Right Analog-stick Right. If the freestyle line is blotchy and sprinkly, this will not work.

Invisible Track

While playing a game, press L3, R3, L3, L3, R3, L3, R3, R3, L3. Then pause and choose exit. Then re-enter a level and the track will be invisible.

Maximum combos

When in freestyle mode, have someone else hold Square, Triangle, or Circle while you jiggle the Left Analog-stick as fast as possible.

Monkey Gems

Input this code while a song is playing:

These are to be pressed on the analog: Down Right Diagonal (x9)

Monkey Head Gems

While playing a game, press L3(4), R3(4), L3 to get monkey head gems.

Prefabs

To unlock these prefabs, do the following below.

PrefabHow to unlock
AnnieSuccessfully complete the Blastlands Bonus Song in Mellow difficulty (or higher)
Bat GalSuccessfully complete the Beat Factory Boss Song in Brutal difficulty (or higher)
Bat LadSuccessfully complete the Metaclouds Bonus Song in Normal difficulty (or higher)
BiggieSuccessfully complete the Metaclouds Bonus Song in Mellow difficulty (or higher)
Bot GirlSuccessfully complete the Beat Factory Bonus Song in Normal difficulty (or higher)
BugSuccessfully complete the Beat Factory Boss Song in Insane difficulty
CyclopsSuccessfully complete the Elektro Kore Bonus Song in Insane difficulty
Demon DaveSuccessfully complete the Metaclouds Bonus Song in Brutal difficulty (or higher)
Diabolical DSuccessfully complete the Elektro Kore Bonus Song in Brutal difficulty (or higher)
Disco MarvSuccessfully complete the Blastlands Bonus Song in Brutal difficulty (or higher)
Evil MotomaticSuccessfully complete the Elektro Kore Boss Song in Insane difficulty
FredSuccessfully complete the Neotropolis Bonus Song in Mellow difficulty (or higher)
Goggle BotSuccessfully complete the Beat Factory Bonus Song in Insane difficulty
GrondorSuccessfully complete the Beat Factory Boss Song in Normal difficulty (or higher)
Happy Fun GirlSuccessfully complete the Beat Factory Boss Song in Mellow difficulty (or higher)
HotpantsSuccessfully complete the Metaclouds Boss Song in Normal difficulty (or higher)
KimSuccessfully complete the Blastlands Boss Song in Mellow difficulty (or higher)
KongSuccessfully complete the Beat Factory Bonus Song in Brutal difficulty (or higher)
LarrySuccessfully complete the Blastlands Boss Song in Insane difficulty
Lazy JaySuccessfully complete the Elektro Kore Boss Song in Normal difficulty (or higher)
LevarSuccessfully complete the Metaclouds Boss Song in Mellow difficulty (or higher)
Little TonySuccessfully complete the Blastlands Boss Song in Brutal difficulty (or higher)
Mad MelvinSuccessfully complete the Neotropolis Bonus Song in Insane difficulty
MC MikeSuccessfully complete the Blastlands Bonus Song in Normal difficulty (or higher)
MysterionSuccessfully complete the Blastlands Bonus Song in Insane difficulty
NaomiSuccessfully complete the Elektro Kore Bonus Song in Mellow difficulty (or higher)
NormSuccessfully complete the Neotropolis Boss Song in Mellow difficulty (or higher)
PixelSuccessfully complete the Elektro Kore Boss Song in Brutal difficulty (or higher)
RageatronSuccessfully complete the Metaclouds Bonus Song in Insane difficulty
Razor XSuccessfully complete the Neotropolis Boss Song in Brutal difficulty (or higher)
RobofairySuccessfully complete the Metaclouds Boss Song in Insane difficulty
RoxanneSuccessfully complete the Neotropolis Bonus Song in Brutal difficulty (or higher)
Swat ManSuccessfully complete the Elektro Kore Bonus Song in Normal difficulty (or higher)
TexSuccessfully complete the Elektro Kore Boss Song in Mellow difficulty (or higher)
TrollheimSuccessfully complete the Metaclouds Boss Song in Brutal difficulty (or higher)
Trust MeSuccessfully complete the Blastlands Boss Song in Normal difficulty (or higher)
VelmaSuccessfully complete the Beat Factory Bonus Song in Mellow difficulty (or higher)
VernSuccessfully complete the Neotropolis Boss Song in Normal difficulty (or higher)
XenonSuccessfully complete the Neotropolis Boss Song in Insane difficulty
Zandork 9Successfully complete the Neotropolis Bonus Song in Normal difficulty (or higher)

Scramble Gem Positions

During gameplay, press X, X, LEFT, LEFT, R3, R3, RIGHT, RIGHT to switch up the gem positions.

Tunnel/Tempest Mode

While playing a game, press L3(3), R3(3), L3, R3, L3 to get a Tunnel style view. Enter the code again to get a Tempest style view.

Unlock Freq Parts

Beat the boss song of any level to unlock extra Freq parts.