Shadow: War of Succession Cheats

At the difficulty selection screen, press Down, Down, Left, Right, Up, Up on Controller 1. This turns on the cheat mode. During a match, press the L button to instantly kill your opponent.

When fighting the SHADOW King, press start on controller two. The Character Selection Screen should appear. Player two will highlight the question mark, which is the SHADOW King, at the selection screen. Press play on controller two in order to select the SHADOW King while the question mark is highlighted. Player two should be the SHADOW King when the fight begins.