Play as Real-Shishioh (King Leo) in Fu'un Mokushiroku
To play as King Leo go to Versus mode or training mode of this Title and then go to Shishioh and Quikly enter:
Press [Down] ten times and then press any button - Real. Shishioh (King Leo)
NOTE: Quickly press [D-pad Button] to get it work.
Play as Bosses in Fu'un Super Tag Battle
To play as Bosses first go to select Fu'un Super Tag Battle from main menu then enter:
Press [Up] over Gozu - Jyazu (Final Boss)
Press [Up] over Shishioh - Real Shishioh (King Leo)