Complete the following tasks to unlock Vita trophy rewards.

Trophy	How to unlock
Best...Alternate...Ever! (Bronze)	Unlock Mileena's 3rd Alternate Costume.
Brotherhood of Shadow (Bronze)	Discover and fight Hidden Kombatant 4 in Arcade Ladder.
Complet-ality (Bronze)	Perform 1 of each type of "-ality".
Finish Him? (Bronze)	Perform any fighter's hidden finishing move.
Hide and Seek (Bronze)	Discover and fight Hidden Kombatant 2 in Arcade Ladder.
Pit Master (Bronze)	Discover and fight Hidden Kombatant 3 in Arcade Ladder.
The Fall Guy! (Bronze)	Discover all the deathtraps in Test Your Balance.
Three's Company (Silver)	Unlock Kenshi, Skarlet, and Rain Alternate Costumes.
Ultimate Humiliation (Silver)	Perform every fighter's hidden finishing move.
You Found Me! (Bronze)	Discover and fight Hidden Kombatant 1 in Arcade Ladder.