CODES

You can access six Super Saiya-jin characters at the very beginning of the game using the following code, inputted at the title screen (has a picture of Son Goku on the right, with the Dragonball Final Bout logo on the left), after the screen has completed its fade-in: Right, left, down, up, right, left, down, up. This will give you the characters Super Saiyajin Trunks, Super SaiyajinSeinen Trunks (from 
the future), Super Saiyajin Son Goku (Z), Super Saiyajin Son Goku (GT), Super Saiya-jin Chibi Son
Goku(GT), and Super Saiya-jin Vegetto. In order to use Super Saiya-jin 4 Son Goku. You must first enter the Taisen mode, and choose to fight against the computer on the hardest skill level (HARD). You must then reach Super Baby without continuing, and defeat him with a perfect (or near-perfect). You will then be given the chance to fight Super Saiya-jin 4 Son Goku -- upon beating him, you should be able to select him in the character select screen. You can also select Super Saiya-jin 4 Son Goku instantly by first inputting in the code above (right, left, down, up, right, left, down, up), and then pressing the triangle button five times, and the X button nine times.  NorthAmerican owners of Dragonball GT: Final Bout, press the triangle button five times, and the SQUARE button nine times.