Here is the full list of all 50 Street Fighter X Tekken trophies - there are 40 bronze, 6 silver, 3 gold and 1 platinum.
Unlock all Trophies.
Activate your Assist Gems 100 times.
Connect with 500 Launchers.
Defeat 5 rival teams in Arcade mode on Medium difficulty or higher.
Activate Cross Assault 500 times.
Finish a round with Cross Assault 300 times.
Connect with 500 Super Arts.
Activate Pandora 500 times.
Connect with 100 Quick Combos.
Fight 500 matches online.
Finish a round with a Super Art 300 times.
Finish a round with Pandora 300 times.
Connect with 500 Cross Arts.
Use Arcade Fight Request 30 times.
Clear all of the missions in Mission mode.
Finish a round with a Cross Art 300 times.
Connect with 500 EX Special Moves.
Have your replay downloaded 20 times in My Channel's Broadcast Mode.
Get to C rank for the first time in Ranked Match.
Raise your battle class rank for the first time in Ranked Match.
Fight 300 matches online.
Use a character in battle over 300 times.
Obtain 300 Titles.
Go into Training mode 10 times.
Clear 300 trials in Trial mode.
Win in a Ranked Match.
View 50 replays in the Replay Channel.
Create 10 lobbies in Endless Battle.
Win 100 matches online.
Fight 100 matches online.
Win 50 matches online.
Fight 50 matches online.
Win 10 matches online.
Win 5 matches online.
Win a match in Endless Battle.
Customize a character's color.
Win a round without getting hit 100 times.
Activate your Boost Gems 100 times.
Customize your player Title.
Customize your player comment.
Customize a Gem Unit.
Connect with 500 Special Moves.
Defeat all of the bosses in Arcade mode on the hardest difficulty.
Clear Arcade mode on Medium difficulty or higher.
Clear one mission in Mission mode.
Clear ten trials in Trial mode.
Clear one trial in Trial mode.
Access the Store.
Clear all of the lessons in the Tutorial.
Clear one lesson in the Tutorial.