you can't get him but you can in budokai tenkaichi 3
sadly he isn't a character on that game trust me i have the game
Just go to this site: http://gameolosophy.com/games/gaming-on-the-go/
Goku (End, Mid and Early), Krillin, Gohan (Kid, Teen,Ultimate, Adult and Future) and so on...
On Level 9 of 'Dragon World,' pick Adult Gohan as one of your allies. Use Adult Gohan to defeat Cell.
you can't get him but you can in budokai tenkaichi 3
gather all the dragon balls and summon shenron and you will have a small list
sadly he isn't a character on that game trust me i have the game
you have to kill grandpa gohan in destined rivals
Defeat Grandpa Gohan in "Destined Rivals: 03" to unlock Kid Goku.
Just go to this site: http://gameolosophy.com/games/gaming-on-the-go/
first you have to have your dragon ball z game in the ps2 then select story mode then fight grandpa gohan on kami's lookout then go kill yamcha for 1 million of zeni then combine master roshi's pupil with fox mask to get grandpa gohan then you have to put health plus 10 on him and defense plus 15 and speed plus 100 when you fight grandpa gohan to win master roshi's pupil then have 3 million zeni before killing yamcha to get grandpa gohanif you beat shenron then you will be able to wish for it
Goku (End, Mid and Early), Krillin, Gohan (Kid, Teen,Ultimate, Adult and Future) and so on...
In the free event in the Destined Rivals saga at Kami's Lookout with Goku (The first time you control Goku). To get him, you need Master Roshi's Pupil and Fox Mask. To get them, Beat Grandpa Gohan for the Pupil and then for the fox mask, in Dragon Adventure mode, in the Buu Saga, go to chapter 11. Find the yellow dot on your map in the Mountain Road area. Fight Yamcha, if you win you also get 1,000,000 zenie
defeat grand pa gohan in free event dentined rivals when you first control goku at kamis lookout
It is very simple just beat Gohan in the beginning of Majjin Buu Saga with Goten if you don't believe me just go to Gamespot.com and type in Tenkaichi 2 Cheats
There are TWO trunks in the series. Future trunks, and present trunks.