Jack

Story
A young saiyan who survived the destruction of planet vegeta by hiding on another planet when he was 2. After living there alone for 5 years Jack decided to go to earth. However the time in space meant Jack did not age. He arrived on earth just after cell was killed by Goku and Gohan. After befriending Gohan Jack developed his own unqiue fighting style and started training.He then appeared regulary from then on also befriending Goten and Trunks.

Cell saga
2 years after Cell was destroyed a 7 year old Jack crash lands on earth and gets trained by gohan. Having problems with the kamehameha and masenko however, Jack focused on other moves. Hes very fond of training and eating and manages to become a super saiyan quite quickly. Chi-chi states hes nearly as good as Gohan. He wishes to become as strong as Gohan one day. Jack challenges Vegeta to a sparring match but loses after a very close match by Vegetas Galick gun. After completing his training Jack leaves to become strong enough to win the next world tournament.

Buu saga
Now 12 years old Jack is first seen defeating Bojack, Slug and Turles when past enemies escape from hell. He is next seen at the 25th world tournament where he defeats both Goten and Trunks. When Super buu appears Jack wants to help fight but is held back by Gotenks. After Gotenks is absorbed Jack turns super saiyan for the first time in years and nearly kills super buu but is accidently killed by Vegito when he refuses too withdraw. However he gets revived in the end. 10 years later Jack is a famous mixed martial artist. He takes part in the 28th tournament and wins.

Video games
Jack makes his video game debut in ultimate tenkaichi. He also has a speicel intro quote with vegito saying " I still remember you killing me you know!" To which Vegito repiles "Hey it was an accident! Chill out!"

He also appears in Dragon ball Z vs Nintendo where he does not actully fight but controls a Piplup.

Jacks moveset is as follows: B - Aqua jet  Side B - peck    Up B - Pound    Down B - Rest   Final smash - Surf