Dragon Ball Z Budokai HD Collection

For this achievement you'll need to select World Match and compete under the Adept class, but first you'll need to unlock it.

To unlock the Adept class of the World Tournament mode you'll need to first complete the Novice class. Then go to Mr. Popo's skill shop and purchase the Adept class under recommended for 4,000 Zenie.

This tournament is 4 rounds and the difficulty is that of a solid, familiar level. Here you win a match by either depleting all of your opponents health, or being kicked out of the ring. Do not rely on Ring-Outs as opponent can quickly turn them against you. Dealing blows and knowing when to block or side-step will help you out greatly.

Tip #1: Winning tournaments earn you money that you'll be able to use to purchase skills for our characters later on at Mr. Popo's Skill Shop. Allowing you to customize your characters skills and make them your own with specific attacks, supporting items, and transformations to give you an advantage in battle.

SKILL SHOP MENU & PRICES
Special (Transformations & Death Moves) 2,000 Zenie
Physical (Continuous Attacks & Grapples) 2,000 Zenie
Support (Passive Abilities & Items) 2,000 Zenie
Gamble (Random) 3,000 Zenie
Recommended (Shows the item before purchase) 4,000 Zenie

Once you've played with a character you're familiar with and customized them go win that Adept Tournament for the grand prize money, 30,000 Zenie! And this 20G achievement!

P.S. If you manage to lose before the final match you'll still get a Runner-Up prize of Zenie.