UFO: All-Stars Battle (season 4)

UFO: All Star Battle 4: All Stars is the fourth and final season of the spinoff of the action-adventure series, United Fighting (2010-2013). It features thirty contestants, each of which were characters on the show and competed on a previous season of UFO: All Star Battle. The final season premiered on September 1, 2018, and concluded on November 10, 2018.

This season saw a change in format, where the returning contestants competed in fifteen teams of two. Only fourteen were announced prior to the premiere, with the fifteenth gold team being marketed as the mystery team prior to the season's premiere. It was revealed to be Legend and Amber, who competed on season 2 and placed 3rd and 7th respectively.

The winner was Scales of the Overworld series.

Contestant progress
WINNER: The contestant was the winner of UFO: All Stars Battle.

RUNNER-UP: The contestant was eliminated in the second round of the final challenge.

2ND RUNNER-UP: The contestant was eliminated in the first round of the final challenge.

FOURTH PLACE: The contestant was eliminated after not receiving enough votes in the final four jury vote.

ADVANCED: The contestant advanced to the final challenge.

WIN: The team won the challenge and was safe.

SAFE (white): The team was not put up for elimination.

LOW:  The team was put up for elimination, but won the last chance challenge and was saved.

NOM: The team lost the both the weekly challenge and the last chance challenge and was put up for elimination.

ELIM: The team was was eliminated.

Player (Voted For): A given player voted for a finalist in the final four jury vote.