Z mode:
Beat Dragon Universe on very hard.

Z2 mode:
Beat Dragon Universe on Z mode.

Z3 mode:
Beat Dragon Universe on Z2 mode.

Gold card:
Spend 100,000 zenie in the shop, or level a character up to 30.

Black card:
Spend 250,000 zenie in shop, or level a character up to 15.

Android 16:
Look for him on the South Island plain and then take him to Bulma in West City.

Android 17:
Use Piccolo and defeat Android 17 in the Dragon Universe.

Android 18:
Use Krillin to beat Dragon Universe mode.

Captain Ginyu:
In Dragon Universe, beat Captain Ginyu with Goku.

Cell:
In Dragon Universe, beat Cell with Teen Gohan.

Teen Gohan:
Beat Dragon Universe with Kid Gohan.

Dabura:
Beat Dabura in story mode with Teen Gohan.

Dr. Gero:
Beat Dr. Gero in Dragon Universe with Yamcha.

Frieza:
Beat Frieza in Dragon Univese with Goku.

Gohan:
Use Teen Gohan and beat Dragon Universe.

Goten:
Beat Goten in Dragon Universe with Gohan.

Great Saiyaman:
Beat Cell in story mode with Kid Gohan.

Kid Buu:
Beat Kid Buu in Dragon Universe with Goku.

Kid Goku:
Beat Dragon Universe with Broly.

Vegeta:
Beat Vegeta in Dragon Universe with Goku.

Kid Trunks:
Beat Majin Buu in Dragon Universe with Vegeta.

Majin Buu:
Beat Majin Buu in Dragon Universe with Goku.

Omega Shenron:
When you are asked to fight Gotenks in the tournament, visit Bulma (West City) first, then defeat Gotenks.

Recoome:
Beat Recoome in Dragon Universe with Goku.

Super Buu:
Beat Super Buu in Dragon Universe with Goku.

Trunks:
Beat Dragon Universe with Vegeta.