Play as Mokujin/Testujin and Unknown in Arcade Mode
You know when you unlock all fighters, you get Mokujin/Testujin and Unknown during the sequence. Have you noticed that when you play Arcade mode, Mokujin/Testujin and Unknown don't seem to be selectable, but in theater, Mokujin's/Testujin's and Unknown are selectable to see their movies? To play as Mokujin/Testujin in Arcade, go to the bottom row, go all the way left, but don't stop at the last visible fighter, keep on going. Testujin should appear on the bottom of the screen. Do the same thing with Unknown, but go all the way to the right, instead. It worked for me, so it should work for you, too.
"S-R-S" is over and out!
Added by: the_SRS Apr 19th 2007, ID#26257