Play as any character in Grind Square

Finish the game, then load a new game

Cube/Combo

Complete Chapter 1

Play as Garam

To unlock Garam simply complete his challenges.

Play as Goji

To play as Goji, get a JET ranking on all the Grind City levels.

Play as Gum

To unlock Gum simply finish her challenges at the beginging of the game.

Play as Love Shockers, Noise Tanks, Poison Jam, and Goji

Beat the game with a JET ranking in all stages. This includes regular stages as well as Golden Rhino stages

Play as Mew

Beat all the Benten-Cho (aka City of Night) levels with any ranking. After that, Mew will challenge you. Beat the three of her challenges, and she'll join you, allowing you to pick her as playable character.

Play as Poison Jam

To play as Poison Jam, get a JET ranking on all of the Kogane-cho levels.

Tab

Unlock Gum and complete the challenges Tab gives you afterwards.

Unlock Pots, the Dog!

To get to play as Pots, finish the game with the Jet ranking on every level. Every level, meaning both story mode and the basic areas.

Unlock Slate

Play through the game until Slate challenges you to a race in Kogane-Cho. Beat him to unlock.

Yo-Yo

Progress through story mode until he challenges you. Beat his challenge to unlock.

A working senior (20)

Unlock Goji and use him as a player character

Back to the future (10)

Unlock all songs in the bonus menu

Behind the mask (10)

Unlock unmasked Poison Jam

Cop sucks (10)

Draw graffiti 5 times on Onishima's back

Detached (20)

Finish the game without anyone latching onto you with your first attempt

Dog runs too! (20)

Unlock Pots and use him as a player character

Feel the beat (5)

Start game for the first time

First coat applied (10)

Complete Chapter 1

I got Soul (50)

Collect all Graffiti Souls

I need a parachute (5)

Fall more than 20 meters off a building

King of the street (10)

Complete all missions with any rating

Look behind (5)

Perform a Turn Trick in game

Love rules (10)

Unlock Love Shockers and use her as a player character

No Eyes in the Sky (10)

Draw graffiti 5 times on Helicopters

Noise music (10)

Unlock Noise Tank and use him as a player character

Number one artist (20)

Use all graffiti in missions

Paint the town red (10)

Complete Chapter 3

Public menace (10)

Make 100 civilians jump out of your way

Remixes suck! (5)

Complete a level without collecting a Recovery Spray Can

Rise of Monsters (10)

Unlock Poison Jam and use him as a player character

Scrapyard bully (5)

Shove the two civilians in No.540 level before the choppers show up

Second coat applied (10)

Complete Chapter 2

So creative (10)

Create a graffiti in all sizes

Tag you're it! (10)

Tag out at least one rival gang member within 30 seconds

That's how we grind! (10)

Perform a 100+ trick combo

The gang's all here (20)

Unlock all characters

Training wheels (10)

Complete Tutorial

Unlock Garam (10)

Unlock Garam and use him as a player character

We got us a crew (5)

Unlock Gum and Tab

When you're a Jet (50)

Complete every level with Jet rating

Shirt

Unlock Gum and Tab

Spray Can

Unlock Gum and Tab