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Amplitude has a fairly open structure as far as which portions of the game can be played at what time. For the most part this section will simply explain the requirements for unlocking the songs at various difficulty levels.

Boss songs are unlocked by completing each of the previous songs in the arena. Bonus songs are unlocked by achieving a minimum number of points on the previous songs in the arena.

Boss songs and Bonus songs unlock new Freq Prefabs and new parts for custom Freqs.

Please note that the content below may contain spoilers for some people. The Artist and Song names are hidden behind spoiler tags for Boss and Bonus songs, but the rewards for completing these stages are not. If this is something you don't wish to read, you may want to skip these stages.

Contents 1 Training Arena 1.1 Basic Training 1.2 Advanced Training 2 Neotropolis Arena 2.1 P.O.D. vs. TCM 2.2 Garbage 2.3 Quarashi 2.4 Boss 2.5 Bonus 3 Beat Factory Arena 3.1 Run-DMC 3.2 The Baldwin Brothers 3.3 Weezer 3.4 Boss 3.5 Bonus 4 Metaclouds Arena 4.1 Pink 4.2 Papa Roach 4.3 Mekon 4.4 Boss 4.5 Bonus 5 Elektro Kore Arena 5.1 DJ HMX 5.2 BT 5.3 Manchild 5.4 Boss 5.5 Bonus 6 Blastlands Arena 6.1 Blink-182 6.2 Dieselboy 6.3 Boss 6.4 Bonus

[edit] Training Arena

[edit] Basic Training

Teaches controls, track switching, and the power meter (the basics needed to get through a song). Unlocks the Neotropolis Arena.

[edit] Advanced Training

Teaches about the powerups and streaks. Not required, but recommended to get an idea of what's going on before jumping into the game.

[edit] Neotropolis Arena

[edit] P.O.D. vs. TCM

Song Title: Boom! (The Crystal Method Remix)

[edit] Garbage

Song Title: Cherry Lips (Go Baby Go)

[edit] Quarashi

Song Title: Baseline

[edit] Boss

This song is unlocked by completing each of the previous songs in this arena.

Freq Rewards

Difficulty	Prefab	Accessories	Accessories
Mellow	Norm
Normal	Vern	Ballcap 1	Game Geek Head
Brutal
Insane

[edit] Bonus

Difficulty	Unlocked At
Mellow	1000 points
Normal	2100 points
Brutal
Insane

Freq Rewards

Difficulty	Prefab	Accessory	Accessory
Mellow	Fred	Fred's Head	Tank Top
Normal	Zardok 9	Moon Emblem	Big Ears
Brutal
Insane

[edit] Beat Factory Arena

[edit] Run-DMC

Song Title: King of Rock

[edit] The Baldwin Brothers

Song Title: Urban Tumbleweed

[edit] Weezer

Song Title: Dope Nose

[edit] Boss

This song is unlocked by completing each of the previous songs in this arena.

Freq Rewards

Difficulty	Prefab	Accessory	Accessory
Mellow	Happy Fun Girl	Antenna	Slit Shades
Normal
Brutal
Insane

[edit] Bonus

Difficulty	Unlocked At
Mellow	1000 points
Normal	2600 points
Brutal
Insane

Freq Rewards

Difficulty	Prefab	Accessory	Accessory	Accessory
Mellow	Yelma	Flower	Headphones 2	Shades 3
Normal
Brutal
Insane

[edit] Metaclouds Arena

[edit] Pink

Song Title: Respect

[edit] Papa Roach

Song Title: M-80 (Explosive Energy Movement)

[edit] Mekon

Song Title: What's Going On (featuring Roxanne Shante)

[edit] Boss

This song is unlocked by completing each of the previous songs in this arena.

Freq Rewards

Difficulty	Prefab	Accessory	Accessory
Mellow	Levar
Normal
Brutal
Insane

[edit] Bonus

Difficulty	Unlocked At
Mellow	1000 points
Normal	3200 points
Brutal
Insane

Freq Rewards

Difficulty	Prefab	Accessory	Accessory	Accessory
Mellow	Biggle	Skull Cap
Normal
Brutal
Insane

[edit] Elektro Kore Arena

[edit] DJ HMX

Song Title: Cool Baby (w/ Naoko Takamoto)

[edit] BT

Song Title: Kimosabe (w/ Wild Child)

[edit] Manchild

Song Title: Nitro Narcosis (Not available in Mellow difficulty)

[edit] Boss

This song is unlocked by completing each of the previous songs in this arena.

Freq Rewards

Difficulty	Prefab	Accessory	Accessory
Mellow	Tex	Cowboy Hat
Normal
Brutal
Insane

[edit] Bonus

Difficulty	Unlocked At
Mellow	750 points
Normal	3400 points
Brutal
Insane

Freq Rewards

Difficulty	Prefab	Accessory	Accessory	Accessory
Mellow	Naomi	Visor
Normal
Brutal
Insane

[edit] Blastlands Arena

[edit] Blink-182

Song Title: The Rock Show

[edit] Dieselboy

Song Title: Subculture (w/ Kaos Rock, Styles of Beyond, Actual Proof)

[edit] Boss

This song is unlocked by completing each of the previous songs in this arena.

Freq Rewards

Difficulty	Prefab	Accessory	Accessory
Mellow	Kim	Cherry Emblem	Goggles
Normal
Brutal
Insane

[edit] Bonus

Difficulty	Unlocked At
Mellow	750 points
Normal	1700 points
Brutal
Insane

Freq Rewards

Difficulty	Prefab	Accessory	Accessory	Accessory
Mellow	Annie	Annie Torso	Shades 4
Normal
Brutal
Insane