Well i think this is. When i was playing Uub's DU the second time i collected all the Dragonballs and went to lots of places such as West City, To king Kai, and lots more before each of the matches and after fighting Goku the last time Omega Shenron appeared and Goku told me to beat him. Is there a cheat or something like i go to Kamis Tower or west city and unlock something. And im not sure collecting all the Dragonballs makes you go to omega shenron or going to fight someone or gojng to west city or something.
Things i remember going to:
Before fighting Buu i went to Hercule City to fight Great Saiyaman.
Before fighting at the World Martial Arts Turnement i went to West City to fight Vegeta.
I found all the Dragonballs.
After fighting Buu(i think) i went to the North East part of the map and talked to King Kai telling jokes.
I think i talked to Yajarobie.
I went to Kami's Tower and talked to Piccalo before fighting at the World Tournement.
And i cant remember the rest.
If there is a way to unlock someone else before fighting Omega Shenron can someone tell me.