Dragon Ball Z Budokai HD Collection

This will unlock after you have defeated Frieza after Goku's first Super Saiyan transformation and after clearing "The Legendary Super Saiyan" After beating Frieza and watching the cut scene this will pop.

This achievement is story related and cannot be missed.

This achievement is earned by battling with Frieza. To which you'll give witness to one of the most EPIC moments in DBZ history, Goku's transformation into the Legendary Super Saiyan!
And then Frieza will get what's coming to him.

Upon completing this you'll pop this achievement and earn 15G!