Story

Su-Goro is a Space Raccoon that stumbled into Sugoroku Space in another dimension with his son Su-Kogoro and became trapped there.
Upon hearing that he can escape if he wins at Sugoroku (Japanese board game) 540,000 times in a row, he sets out to do just that, cheating his way to victory.
Later, Goku also becomes trapped in Sugoroku Space after being hit by a Revenge Death Ball launched by the nefarious Vegeta Baby. Once there, the Saiyan gets challenged to Sugoroku by Su-Goro in human form.

With his son transformed into a die, Su-Goro is close to winning! But just when things seemed lost, Goku finally saw through the deceit, forcing Su-Goro to revert back to his Space Raccoon state. As a result, Sugoroku Space begins to unravel upon itself.
Goku, Su-Goro, and Su-Kogoro get spat out into space, but Supreme Kai Kibito manages to rescue them and transports them all to Supreme Kai's Realm.

Once there, a plan is put into motion that will awaken Goku's hidden potential and give him the power he needs to defeat Vegeta Baby by forcibly regrowing his tail.
Su-Kogoro transforms into a giant pair of pliers that Supreme Kai Kibito, Elder Supreme Kai, and Su-Goro then use to yank and regrow Goku's tail.

First Appearance

"Dragon Ball GT"

Trivia

He's shockingly strong when in Sugoroku Space!

Sugoroku Space is a harsh place where the only way to stay alive is to keep winning, but Su-Goro manages to do just that through a bit of trickery.
It is said that nobody has ever managed to defeat the wily Space Raccoon at Sugoroku!

→Preview: Scroll down to the comments for a hint about who next week's character will be!

*All comic images are from the Japanese version.