If you have a savedata of "Street Fighter X Tekken" in your console, it will automatically unlocks five extra costumes for them. Beware! These costumes aren't the ones of the USFIV preorder, there are the ones from SFxTK. As Decapre isn't in the game, they give her the Cammy's one.
Costume
How to unlock
"Bad girl" Decapre costume (SFxTK Cammy)
Get a savegame from Street Fighter x Tekken.
"Military" Poison costume
Get a savegame from Street Fighter x Tekken.
Hugo viking costume
Get a savegame from Street Fighter x Tekken.
Rolento plumber costume
Get a savegame from Street Fighter x Tekken.
School uniform for Elena
Get a savegame from Street Fighter x Tekken.
East "New Threads" Trophy
Change your icon and title in the main menu by going through the list until you reach the "USFIV" category. Select anything desired for that category, and play any type of match and finish it.
Easy "Good old times" Trophy
Start a Versus mode game against the CPU under the "Hardest" difficulty setting and the "Edition Select" option on. Set the game to one round. Choose any character (Zangief recommended) and make sure the edition is "USFIV". Choose your opponent to be the same character as yourself. Set the CPU's edition to "SFIV" its handicap to "0%". Then, defeat your opponent.
Easy "Ultra Effective" Trophy
Win an Online Ranked match with Poison, Elena, Rolento, Hugo or Decapre.
Prize Codes
To enter these prize codes, simply access the Player Data screen from the main menu. At the bottom of the list of available options, "Prize Code" should be visible. Selecting this option will pop out a text entry field which should be filled with the following strings to unlock their respective titles.
Effect
Password
"Angry Dog"
LPTPV4J9PMLW5B
"Best Combo"
82SPR56FW3JX48
"Better Luck Next Time!"
M42OLW0IHGLGMJ
"Breath of Summer"
H3EO9O5MZTCMLQ
"Cheers!"
0QLBUU3LB7R8WO
"Chocolate-Chip Cookie"
8TGIXJVLEKEHG8
"Justice till the End"
1H98PF2079P43T
"Pro Animator"
T9N4MH7IIHT3R0
"Capcom Fighter"
8TGIXJVLEKEHG8
Various Trophies
Complete the following tasks to unlock PlayStation 3 trophy rewards.
Trophy
How to unlock
A dish best served cold (Bronze)
Clear Arcade Mode on Medium or higher without using a continue with Decapre.
All For One (Silver)
Gather a team of four and defeat another in any Team Battle.
Double Feature (Silver)
Use both Ultra Combos in a single Ranked Match.
For the Utopia! (Bronze)
Clear Arcade Mode on Medium or higher without using a continue with Rolento.
Giant Attack (Bronze)
Clear Arcade Mode on Medium or higher without using a continue with Hugo.
Good old times (Silver)
Defeat your Street Fighter IV self on the Hardest diffculty.
The world is my stage (Bronze)
Clear Arcade Mode on Medium or higher without using a continue with Elena.
Toxic Beauty (Bronze)
Clear Arcade Mode on Medium or higher without using a continue with Poison.
Ultra Effective (Silver)
Win a Ranked Match with a character added in Ultra Street Fighter IV.
Costumes for the new challenge...