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 acquired all Ninja Info Cards.
You've saved up 999999 Storm Points.
You've cleared all events.
You've cleared all requests.
You've acquired all battle items.
You've seen friendship events for everyone.
You've seen all memories.
Your total play time is over 30 hours.
You've cleared all correspondence events.
You've cleared the 10 trials.
Collected 100% of the stories.
You've collected all collection items.
Saved up 999999 Ryo.
You've retrieved all cursed dolls.
You've collected all messenger birds.
You've cleared Fragment.
You've retrieved all Tonton's pearls.
You can now use all characters.
You can now use Lars.
You've gained 50 titles.
You've won 10 times in online Ranked Match battles.
You can now use all members of the Akatsuki.
You've cleared Final Chapter.
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 picked up 500 items.
You've won 1 time in online Ranked Match battles.
Edited a Ninja Info Card.
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 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".