Here is the full list of all 12 Not A Hero trophies - there are 7 bronze, 4 silver and 1 gold.
MAKE BUNNYLORD GLOBAL MEGALORD
MAKE BUNNYLORD KING OF ENGLAND
MAKE BUNNYLORD PRIMINISTER
MAKE BUNNYLORD MAYOR
KILL THE HELICOPTER
DO A TOTAL OF 300 EXECUTIONS
GET A TOTAL OF 300 CRITICAL HITS
KILL UPGRAYDD
KILL BOGDAN
FIND THE SECRET DOOR IN SUSHI CENTRAL
FIND THE SECRET DOOR IN BREDRIN PARK
FIND THE SECRET DOOR IN VODKAVILLE