Here is the full list of all 50 Naruto Shippuden: Ultimate Ninja Storm 2 trophies - there are 42 bronze, 4 silver, 3 gold and 1 platinum.
You've acquired all trophies.
You've acquired all titles.
You've won 10 times in online Ranked Match battles.
You've won 1 time in online Ranked Match battles.
You've cleared all events.
You've cleared all requests.
You've acquired all Ninja Info Cards.
You've acquired all battle items.
You've cleared all correspondence events.
Your total play time is over 30 hours.
You've seen friendship events for everyone.
Collected 100% of the stories.
You've collected all collection items.
You've cleared the 10 trials.
You've retrieved all Tonton's pearls.
Saved up 999999 Ryo.
You've retrieved all cursed dolls.
You've cleared Fragment.
You've saved up 999999 Storm Points.
You've collected all messenger birds.
You've gained 50 titles.
You can now use all characters.
You can now use Lars.
You've seen all memories.
You've acquired S Rank in "The Two Uchiha".
You've seen all secret factors.
You've acquired S Rank in "Forbidden Fury".
You can now use all members of the Akatsuki.
You've cleared Final Chapter.
You've acquired S Rank in "Earth Shatter".
You've cleared Chapter Six.
You've acquired S Rank in "Battle Between the Sage God".
You can now use Jiraiya, Tsunade and Orochimaru.
You've cleared Chapter Five.
You've cleared Chapter Four.
You can now use Sasuke, Suigetsu, Karin and Jugo.
You've cleared Chapter Three.
You've acquired S Rank in "Sturm und Drang".
You've cleared Chapter Two.
You've acquired S Rank in "Showdown Between Best Friends".
You've picked up 500 items.
You can now use Kakashi, Yamato, Guy and Asuma.
You can now use members of Naruto's generation.
Edited a Ninja Info Card.
You've cleared Chapter One.
You've acquired S Rank in "Sakura Dances".
You can now use Gaara, Kankuro, Temari and Chiyo.
You've acquired S Rank in "Sand and Art Blast".
You've cleared the Prologue.
You've acquired S Rank in "The Bell-Stealing Drill".