Complete the following tasks to unlock Vita trophy rewards.

Trophy	How to unlock
Alien Maggots are Gonna Pay (Bronze)	Finish the "Hollywood Holocaust" level in under 3 minutes.
Come Get Some (Silver)	Complete "Shrapnel City" on any difficulty or in co-op.
Duke's Mighty Foot (Bronze)	Step on 40 enemies after using the Shrinker on them.
Game Over (Gold)	Complete "The Birth" on any difficulty or in co-op.
Gonna Rip Em' a New One (Bronze)	Get 100 total kills in ranked Dukematch games (Online).
Hail to the King, Baby (Bronze)	Earn respect and get 500 total kills in ranked Dukematch games (Online).
I've Got Balls of Snow (Bronze)	Complete "Duke: Nuclear Winter" on any difficulty or in co-op.
Let's Rock (Bronze)	Complete "Lunar Apocalypse" on any difficulty or in co-op.
Limbo time! (Bronze)	Complete "Duke Caribbean: Life's A Beach" on any difficulty or in co-op.
Looks Like Cleanup on Aisle 4 (Bronze)	Step in a pile of excrement.
Oomph, Uugh, Where is it? (Bronze)	Find 70 secret areas.
Piece of Cake (Bronze)	Complete "L.A. Meltdown" on any difficulty or in co-op.
See You in Hell (Bronze)	Get 250 total kills in ranked Dukematch games (Online).
Shake It Baby (Bronze)	Tip an exotic dancer.
The Patriot Act (Bronze)	Complete "Duke It Out In D.C." on any difficulty or in co-op.