Liquid Metal Characters
Unlock Edge Master. Then, hold R when selecting a fighter at the character selection screen.
Submitted by Bigmike B.. 

Fight as Inferno
Unlock all the characters, stages, and extra bonuses that are awarded by playing the game in arcade mode and mission mode. Get every picture in the mission mode. When this is accomplished, return to the arcade mode, and select Xianghua and her third outfit by pressing Y + A. If desired, the game may be set to one round and the easy difficulty. Play through and complete the game with her. After the credits complete, a new soul (Inferno) will appear to the right of Edge Master. He randomly switches weapons like Edge Master, but has some moves of his own that can be done with any weapon.
Submitted by Bigmike B.. 

Unlock Extra Modes
To get almost all the bonuses of the game you have to play through the mission battle and keep buying the pictures from the art gallery. Keep playing until the last episodes will worth 2000 points a pic. By competing this mode you will get extra stage, costumes, exhibition mode, weapons, and more. If you successfully get all pictures you will get a gold menu screen.
Submitted by Trunkzzz. 

Weapon Select Mode
To unlock weapon select mode, get all of the art cards and hold L to go through the various weapons.
Submitted by Pimpdaddy. 

Play as Edge Master
Finish the game with all of the standard and bonus characters.
Submitted by Brian_Bridgford. 

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