I've been playing Dragonball Z: Ultimate Battle 22 and heard that Kid Buu, Mistyic Gohan, Pan, SSJ4 Goku and Vegeta were put in the american version, does anyone here know if it's true? If so, How do I get them?

I remember the game was supposed to have 27 characters... I guess those were the extra five. I don't know how to get them, but you'll be able to find out at Gamefaqs. (http://www.gamefaqs.com)

Well there are five characters, but they aren't those that you spoke of, if I remember they were Satan, Master Roshi, Kid Goku...and two others.

I remember playing the Original JPN version. There were 5 extras characters that would appear if you enter the code... in fact, you would get an FMV when you enter the code.

The 5 were Satan, Kid Goku, Roshi, Gogeta, and SSJ3 Goku.

Thanks.

There is no Ultimate Battle American version if I am correct, you are thinking of Dragonball GT: Final Bout which has all the characters you mentioned.