Here is the full list of all 13 Jet Set Knights (HK/TW) trophies - there are 1 silver, 11 gold and 1 platinum.
Get all other trophies.
Defeat 600 Monsters
Slay the Muffin Boss
Shot 500 Arrows
Build 20x Guard Tower
Destroy the Robot Boss
Find 1000 Coins
Shot 250 Fire Arrows
Die 20 Times
Slay the Snowman Boss
Shot 250 Ice Arrows
Slay the Big Ape Boss
Slay the Octopus Boss