Guilty Gear X2
Time Released Unlock Method:
One EX character will be unlocked every 2 hours after 50 hours of gameplay. Guilty Gear Mode will be available 2 hours after Justice is unlocked, and every subsequent 2 hours
will then unlock one SP character.
Alternate MOM and Arcade Modes:
Hold L2 at the Main Menu and choose either Arcade or MOM mode to fight against EX characters. Hold L1 to fight against Gold characters.
Stage Select in VS and Training Modes:
Highlight your fighter in the Character Selector screen and press R2.
Fight in Boss Stage:
Highlight the Random Character Selector in the Chracter Selection screen and press R2.
Use EX or SP Characters:
While choosing a character, hold L2 for EX fighters or L1 for SP fighters.
Thanks to Revolution readers Handle, fred, and theology's_end!