The Guy.

The Guy, was a new playable gamer and the main character (or possibly an NPC created by The Toymaker) who was featured on the poster of the video game, "Game Over", in the 2003 film Spy Kids 3D Game Over.

He is "The Guy" who looks similar like the real guy of Juni Cortez from the poster and briefly in the video game box.

Spy Kids 3D Game Over (2003).
In the third movie, The Guy is seen helping Juni, Carmen, and their followers into the unwinnable level (Level 5) by bashing down the door with a laser blast from one of the gloves of his suit, but is killed by the door's security system, with his lives (99, eleven times the starting limit of 9) being completely obliterated by the electrical shocks triggered by the security system, leading to his death.

Character Profile.
Feature Film: Spy Kids 3D Game Over (2003)

Portrayed By: Elijah Wood

Personality: When introduced, The Guy is seen as heroic, courageous and persistent, and obtains leadership qualities

Appearance: The Guy has a spiky hairdo and wears a gray padded cybernetic suit similar to that of Juni's suit

Alignment: Good

AKA: The Real Guy

Gender: Male

Race: Human (resembling the three-dimensional hologram version)

Status: Deceased (destroyed, resulting in a blasted explosion)

Location: Game Over (cyberspace, virtual reality video game)

Powers And Abilities: Super blaster gloves, firing beam of an blue light charge beams and lasers

Fate: The Guy is seen to fire a laser from his glove, only using it once to blast down the door to Level 5, he also has an extraordinary number of lives, though these are quickly lost after he steps through the previously mentioned doorway and gets electrocuted

Quotes: "He's not The Guy. I am. I'm The Guy, the real Guy." (The Guy when he introduces himself) "And I say we go in, beat this unwinnable level, and get to the other side, where untold riches and a bounty fit for 10 kings awaits us." "Nothing is unwinnable, if we join together and battle as one. We play on each other's strengths and help cover each other's weaknesses." "We can accomplish anything, and we will accomplish everything. But first, let's go whip this unwinnable level and show it who's boss. Are you with me? Stand aside." (The Guy has 40 seconds before he succumbs to the unwinnable level) "Cake. Aah, aah! Oh! Oops." (The Guy's right before his death)

Trivia.

 * When he is first introduced, The Guy starts off with 99 lives.
 * As he enters Level 5, he was shot by a blast so powerful it brought his lives down to 0 and eventually kills him.
 * The Guy was seen in the large poster has been seen briefly shown in the film.