Here is the full list of all 50 Naruto Shippuden: Ultimate Ninja Storm 2 achievements worth 1,000 gamerscore.
You've won 10 times in online Ranked Match battles.
You've won 1 time in online Ranked Match battles.
Your total play time is over 30 hours.
You've cleared all events.
You've acquired all Ninja Info Cards.
You've cleared all requests.
You've acquired all battle items.
You've cleared the 10 trials.
You've seen friendship events for everyone.
You've cleared all correspondence events.
You've collected all collection items.
Collected 100% of the stories.
Saved up 999999 Ryo.
You've saved up 999999 Storm Points.
You've retrieved all cursed dolls.
You've acquired S Rank in "Earth Shatter".
You've cleared Fragment.
You can now use all characters.
You can now use Lars.
You've gained 50 titles.
You've seen all memories.
You've retrieved all Tonton's pearls.
You've collected all messenger birds.
You can now use all members of the Akatsuki.
You've cleared Final Chapter.
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 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".
Edited a Ninja Info Card.
You've cleared the Prologue.
You've acquired S Rank in "The Bell-Stealing Drill".
You've acquired all titles.
You've unlocked all achievements.