Here is the full list of all 15 Action Henk trophies - there are 13 bronze, 1 silver and 1 gold.
Earn a Gold medal on all levels.
Earn a Silver medal on all levels.
Earn a Bronze medal on all levels.
Beat Kentinator's Challenge.
Beat Cedar's Challenge.
Defeat Kentony's challenge.
Beat 99% of all players on a level.
Beat Neil's Challenge
Fall into the lava.
Beat Betsy's Challenge
Beat Action Henk in the City.
Beat all bonus levels
Jump over the barrier.
Earn a Rainbow medal on all levels.
Die 100 times.