Unlock Bonus Quick Play Mode Characters:
When you have unlocked a character in Quick Play mode highlight the 'Random' option at the 'Character Selection' screen and keep pressing Circle until that character appears.

Unlock Bonus Items:
To unlock items that are used by the team leader defeat Cinder's (Class A), Shaman's (Class B), Smoke's (Class C), and Bonyard's (Class D) teams to get the corresponding team leaders item.

Unlock Reina:
Complete Story mode to unlock Reina.

Unlock Shaman:
In Class B defeat Shaman and his team to unlock him in Arcade mode.

Unlock Smoke:
In Class C defeat Smoke and his team to unlock him in Arcade mode.

Unlock Hardcase:
Complete Arcade mode to unlock Hardcase in Quick Play mode.

Unlock KFJ (Team Rogue):
In Class B Story mode defeat KFJ to unlock him in Arcade mode.

Unlock Boneyard:
In Class D Story mode defeat Boneyard (Team Phantom) to unlock him in Arcade mode.

Unlock Cinder:
In Class A Story mode defeat Cinder and her team to unlock her in Arcade mode.

Unlock Mask (Jeet Kune Do):
On the Hard difficulty setting with a Jeet Kune Do fighter complete Arcade mode to unlock him in Quick Play mode.

Unlock Mask (Kickboxing):
On the Hard difficulty setting with a Kickboxer complete Arcade mode to unlock him in Quick Play mode.

Unlock Mask (Street Boxing):
On the Hard difficulty setting with a Street Boxer complete Arcade mode to unlock him in Quick Play mode.

Unlock Mask (Tae Kwon Do):
On the Hard difficulty setting with a Tae Kwon Do fighter complete Arcade mode to unlock him in Quick Play mode.

Unlock Mask (Wrestling):
On the Hard difficulty setting with a Wrestler complete Arcade mode to unlock him in Quick Play mode.