The Expansion Pack 7 Title update for Minecraft: PlayStation Vita Edition (Vita) has 6 trophies - 3 bronze, 2 silver and 1 gold.
Eat nothing but Kelp for 3 days.
Stay underwater for one full day without using potions.
Bribe a Dolphin.
Place four Sea Pickles in one block.
Activate a Conduit.
Use a Dried Kelp block as fuel in a furnace.