Here is the full list of all 12 10 Second Ninja X trophies - there are 9 bronze, 2 silver and 1 gold.
Finish a level with less than 0.03 seconds to the next star rating
Won't somebody PLEASE think of the children!?!
Score 15,000 points playing TOTC
Jump off the ship
Earn 25 Stars
Earn 75 Stars
Earn 150 Stars
Earn 300 stars & X rank all marathon modes
Equip a new character skin
Complete Marathon Mode in every zone
Let Benji join your adventure
Help Greatbeard & Benji on their way