Here is the full list of all 43 Dragon Ball Z Budokai HD Collection trophies - there are 25 bronze, 15 silver, 2 gold and 1 platinum.
Earn all trophies.
Win the Cell Games in Dragon Ball Z: Budokai 3
Unlock #16, #17, #18, Dr. Gero, Cell, and Cell Jr. in Dragon Ball Z: Budokai 3
Unlock Ginyu, Recoome, Frieza, and Saibamen in Dragon Ball Z: Budokai 3
Win World Tournament mode on Advanced in Dragon Ball Z: Budokai 3
Win World Tournament mode on Adept in Dragon Ball Z: Budokai 3
Win World Tournament mode on Novice in Dragon Ball Z: Budokai 3
Unlock Dragon Arena mode in Dragon Ball Z: Budokai 3
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Uub
Unlock Hercule, Videl, and Uub in Dragon Ball Z: Budokai 3
Unlock Cooler, Bardock, Broly, and Omega Shenron in Dragon Ball Z: Budokai 3
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Broly
Unlock Goku (Kid), Gohan (Teen, Adolescent, Saiyaman), and Goten in Dragon Ball Z: Budokai 3
Unlock Buu (Majin, Super, and Kid), Dabura, and Supreme Kai in Dragon Ball Z: Budokai 3
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Yamcha
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Tien
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Piccolo
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Krillin
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Vegeta
Unlock Vegeta and Trunks (Future and Kid) in Dragon Ball Z: Budokai 3
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Gohan
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Teen Gohan
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Kid Gohan
Clear Dragon Universe in Dragon Ball Z: Budokai 3 with Goku
Unlock Great Saiyaman, Trunks, Yamcha, and Hercule in Dragon Ball Z: Budokai
Win World Tournament mode on Advanced in Dragon Ball Z: Budokai
Unlock Legend of Hercule mode in Dragon Ball Z: Budokai
Win World Tournament mode on Adept in Dragon Ball Z: Budokai
Win World Tournament mode on Novice in Dragon Ball Z: Budokai
Clear "A Cold-Blooded Assassin" to complete the Android Saga in Dragon Ball Z: Budokai
Unlock #16, #18, and #19 in Dragon Ball Z: Budokai
Clear "The True Ruler" to complete the Namekian Saga in Dragon Ball Z: Budokai
Unlock Zarbon and Dodoria in Dragon Ball Z: Budokai
Clear "Vegeta, Saiyan Prince" to complete the Saiyan Saga in Dragon Ball Z: Budokai
Clear "Saiyan Attack!!" in Dragon Ball Z: Budokai
Clear "A Mutually Deadly Foe" in Dragon Ball Z: Budokai
Clear "Gohan Explodes!!" in Dragon Ball Z: Budokai
Clear "A Wicked Omen" in Dragon Ball Z: Budokai
Clear "A New Threat" in Dragon Ball Z: Budokai
Clear "The Legendary Super Saiyan" in Dragon Ball Z: Budokai
Clear "Goku's Arrival!" in Dragon Ball Z: Budokai
Clear "Let's Go To Namek!" in Dragon Ball Z: Budokai
Clear "Mysterious Alien Attack!!" in Dragon Ball Z: Budokai