Cheats

Cheats

Ok,Perform the actions below to unlock additional characters:

Broly, Super Broly, LSSJ Broly - Complete Beat Freedom! (What-If Stories)
SSJ3 Broly - Complete The Legendary Super Saiyan Reborn (Secret battle 39: Legendary Super Saiyan Saga)
SSJ3 Vegeta - Complete The Strongest Super Saiyan 3 (Secret battle 47: What-If Stories)
Super Gogeta - Complete Fusion & Potara Part 1: Super Gogeta (What-If Stories)
Vegito, Super Vegito - Complete Fusion & Potara Part 2: Super Vegito (What-If Stories)

Second,These titles can be unlocked by performing the actions below online:

Astounding Power - Achieve rank A
Bomb Maniac - Earn 10 victories with the Explosive Wave
Capricious Warrior - Win 100 battles in cell games stage
Counter Monster - Execute 5 counters in a battle
Dirty Work - Take 5 Upwards Attacks in a battle
Earth-Raised Namekian - Play 10 matches in a row with Piccolo
Earth-Raised Saiyan - Play 10 matches in a row with Goku
Elite Warrior - Earn 10 victories online
Embarassment of the Clan - Lose 10 Saiyan-on-Saiyan fights
Energy Absorber - Win 10 times by absorbing energy
Fireworks Master - Execute 5 Upwards Attacks in a battle
Flying Dragon - Execute 2 Air Combo in a battle
Ginyu force member - Use each ginyu force character 2 times
Golden Warrior - Record 50 victories with Super Saiyan Characters
Grim Reaper of Justice - Win 100 battles with Gotenks
Incomplete Power - Achieve rank G
Invincible Warrior - Earn 20 victories without a loss
Just a Bluff - Lose 20 times even though you transformed
Legend Killer - Defeat Super Saiyan Characters 100 times
Legendary Warrior - Earn 100 victories online
Lightning God - Win 50 times with Plasma Aura
Low Class Warrior - Default
Martial Arts Warrior - Execute 30 Hits in a battle
Nature Lover - Win in the Wasteland field without destroying anything
Preliminary Qualifier - Record 10 victories in the World Tournament stage
Prince of Cruelty - Execute 5 Knockdown Attack in battle
Proud prince of the Saiyans - play 10 matches in a row using Vegeta
Proud prince of the saiyans - play 10 matches in a row using vegeta
Red Ribbon Army - Defeat Goku with Android characters 10 times
Saiyan Killer - Defeat Saiyan Characters 100 times
Strongest in the Other Wold - Win 50 battles with Angel Halo equipped
Super Elite Warrior - Earn 50 victories online
The World's Strongest Warrior - Earn 500 Victories
The World's Strongest Warrior - Earn 500 Victories online
Turtle Practitioner - Earn 10 victories with the Kamehameha
Ultimate Fighter - Win 10 times using an Ultimate Attack
Unknown Power - Achieve rank D
Warrior of Light - Use Solar Flare 10 times in a battle
World Class Speed - Execute 10 Vanishing in a battle
Wussy Warrior - Earn 10 victories by running out of time
Videl - Complete The Student (What-If Stories)

Third, To obtain stars to purchase items from the Star Shop, you simply clear a battle in the Dragon Ball Collection.
Once you do, re-select the battle again but make sure to select the Hard difficulty. You'll spot a new feature called "Mission" that will detail what you need to do to earn stars for the Star Shop.
Each battle now will have objectives each worth stars. One of the three objectives will always be to simply win the fight on the Hard difficulty.

Happy cheating