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 cleared all events.
You've seen friendship events for everyone.
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 won 10 times in online Ranked Match battles.
You've saved up 999999 Storm Points.
Collected 100% of the stories.
You've collected all collection items.
You've collected all messenger birds.
You can now use all characters.
You've cleared the 10 trials.
You've retrieved all cursed dolls.
You've cleared Fragment.
You've seen all memories.
Saved up 999999 Ryo.
You've retrieved all Tonton's pearls.
You can now use Lars.
You've gained 50 titles.
You've cleared Final Chapter.
You can now use all members of the Akatsuki.
You've acquired S Rank in "Earth Shatter".
You've seen all secret factors.
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 acquired S Rank in "The Two Uchiha".
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 acquired S Rank in "Forbidden Fury".
You can now use Kakashi, Yamato, Guy and Asuma.
You can now use members of Naruto's generation.
You've picked up 500 items.
You've cleared Chapter One.
You've acquired S Rank in "Sakura Dances".
You can now use Gaara, Kankuro, Temari and Chiyo.
You've won 1 time in online Ranked Match battles.
You've acquired S Rank in "Sand and Art Blast".
Edited a Ninja Info Card.
You've cleared the Prologue.
You've acquired S Rank in "The Bell-Stealing Drill".