Full list of all 30 SoulCalibur II HD Online achievements worth 400 gamerscore. It takes around 10-12 hours to unlock all of the achievements on Xbox 360.
Unlock All the Achievements
Fought 10 Times in Online Mode
Won 5 Times in Online Mode
Ten Thousand Hits
Ten Victories in Extra Survival Death Match
Used Guard Impact against a Guard Break move
Victorious in Sudden Death
Three Successful Soul Charge Hits
First Victory in Online Mode
Standard Time Attack Cleared
Team Battle Cleared
Obtained All Weapons in Weapon Master
Unlock All Characters
Acquired Soul Calibur in Weapon Master
Became Lv 72 "Iron Edgemaster" in Weapon Master
Acquired Complete Soul Edge in Weapon Master
Became Lv 40 "Gold Mercenary" in Weapon Master
Defeated 50 Female Characters
Five Successful Throw Escapes
Defeated 50 Male Characters
Purchased New Weapon in Weapon Master Shop
Ten Ring Out Victories
Twenty Perfect Victories
Obtained New Costume in Weapon Master Shop
Became Lv 6 "Platinum Neophyte" in Weapon Master
Guard Impact Triple Success
First Trial Point Cleared in Weapon Master
Victorious over Inferno in Arcade
Successful Guard Break
Ten Successful Counter Hits