Noobador

Noobador's defeat pose is a reference to Peter Griffin's death pose.
This is the first time Peter Griffin's death pose has appeared, with the other instances being with a generic Loyal Knight, the Wizard, and both the SLEEP animations of Bigfoot and Griefer. And Reginald's Defeat animation.
The name Noobador comes from the portmanteau "noob" and "luchador," which means "fighter" in Spanish.
Noobador's design may be based on the Noob Attack: Luchador Liability hat.
Noobador may be inspired by King Goomba from Paper Mario 64.
While Noobador has no direct reference to King Goomba, he is paired with Red Noob and Blue Noob in a damaged state, which are references to Red Goomba and Blue Goomba, both from the same game.
He's also the main boss of the prologue, similar to King Goomba.
Noobador's animations are weirdly a hybrid of smooth and choppy animations in contrast to every other enemy's simply choppy animations.
Noobador is one of the enemies that have an attack related to throwing a ball. The others are Apparition, Flame Warrior and Flaming Horse.
Noobador is the only final boss not to be an option for recovering in Nirvana, likely due to him already being in The Pit of 100 Trials and not being a boss fight right before acquiring a SFOTH Sword.
Noobador seems to be more emotional and less funny than Blue Noob and Red Noob.
For a time, Red Noob & Blue Noob's theme would play encountering them in The Pit of 100 Trials. This was a bug that later got fixed.[1]
Noobador has been confirmed to be related to Red Noob & Blue Noob, being their uncle.[2]
In the Pre-Prologue, Red Noob and Blue Noob are found looking at a grave. Since they have a close relationship with Noobador, it's very likely that he died.
Judging by the dialogue of Green Noob, Noobador could currently be Yellow Noob.
It is unknown whether Noobador is siblings with Green Noob or Purple Noob.
Noobador's Superball was previously a dark purple, before randomly changing to red until the release of Demo 4 for unknown reasons.
Noobador can still be refought even after encountering him in the train, which is logic-breaking.
Noobador returned during their encounter in the Prologue, as seen in their dialogue in Bizville.

Release
Stats
Noobador originally had a 34% FREEZE proc chance and a 67% SLEEP proc chance on release.

Cosmetic
Noobador used to have a Normal face.

Demo 2
Stats
Noobador's FREEZE proc chance has been increased to 71%, and his SLEEP proc chance has been increased to 100%, which are the current values.

Cosmetic
Noobador's face now has eyebrows, making him look more confident.

Physical strength: 16/20
Wrestling ability: 17/20
Intelligence: 9/20
Family protection: 18/20
Charisma / "tough guy" presence: 14/20
Loyalty (with nephews): 17/20
Emotional control: 11/20
Speed: 10/20
Resistance: 15/20
Sense of humor (in his style): 12/20

Noobador (main name)
Ol' Yellow (surname used by Green Noob)
Boss (as Red and Blue call him)

Mexican

Luchador / wrestler
Leader of the Noobs (uncle and "boss" of Red and Blue)
Temporarily an engineer on the Bizville train.
Former mercenary working for the Mysterious Figure

These aspects aren't explored much in the game. He seems confident on the surface, but he carries the pressure of being responsible for his nephews and getting money for them.

Red Noob and Blue Noob: nephews (he is their uncle and father figure)
Possibly related to Green Noob and Purple Noob (not confirmed for sure)
Noobs in general (leads a group of Nooblets)

Who hurts their nephews?
Being betrayed (he was betrayed by the Mysterious Figure)
Losing important battles

Fighting / wrestling
Protecting Red Noob and Blue Noob
Money (mainly for the future of my nephews and nieces)
Being called "boss" by younger noobs.

"Tough guy" / luchador style: speaks casually, directly, and a little gruffly ("looks like I'm taking you to pound town, kid").
Protector with Red and Blue Noob (almost like a responsible father/uncle).
More serious, dull, and less emotional than his nephews.
She accepts jobs for money, but deep down she cares about her family.
After the events on the train, he shows a more honest and repentant side.
" Sigh , anyway, it seems like I'm taking you to the city, kid."

Noobador appears as a shirtless, muscular, yellow-skinned Robloxian noob wearing red pants. He has the standard smiling expression paired with neutral eyes, and appears wearing a red mask exposing his eyes and mouth.
Classic yellow-skinned Robloxian noob
Shirtless (bare torso)
Red pants
A red luchador mask that covers most of the face, leaving only the eyes and mouth visible.
Standard noob expression (smile + neutral eyes; in some versions, eyebrows were added to appear more confident)
A body slightly larger/more robust than an average noob.
In some later appearances he wears a train conductor's hat.

Noobador is a noob luchador and the final boss of the Block Tales Prologue. He is the uncle and leader of Red Noob and Blue Noob. He was hired by Mysterious Figure to attack Shedletsky at Roblox HQ in exchange for money. After the player defeats his nephews, he appears in Bizville Meadows seeking revenge and fights alongside them.

Later, in Chapter 3, he appears as the Bizville train engineer. After being attacked by Green Noob and Purple Noob, he helps the player, apologizes for what happened in the prologue, and explains that he only wanted to protect the children and earn money for their future. After that, he quits his job and stays in Bizville. He can also be found again on the 9th floor of the Pit of 100 Trials.