Complete the game with Reiko and then enter the 012 012 Kombat code in Versus mode. Exit this match and enter the 'Character' selection screen. Select the invisible icon at the bottom of the 'Character' selection screen and press Up, Up, Left to highlight Reiko's icon. Then press 'Run' + 'Block'.
Enter Group mode and complete the game with ALL 16 characters. When you then select any character and begin a match your character will be playing as Meat with ALL the moves of the character that was selected.
At the character select screen, highlight Johnny Cage, hold START and press C+Upx3 (his picture should flip three times) When you start a new match, Johnny Cage should be wearing a suit and if you take out his weapon (Forward, Down, Forward, Low kick) it will be a GUN!! "Smoothe"