Sonic Forces - Final Wars DLC - Final Dreadnought and Credits

After they betray Lord Arktivus Brevon and Dr. Isaak Weil and joined the United States, Japan, South Korea, UNSC Military Forces and Allied Forces when the North Korea had a change of heart. After defeating the monster along with Serpentine, Copy X and Omega Zero, Arktivus Brevon (who retrieved the Giga Battle Nizer from the Monster Graveyard) and Dr. Isaak Weik captures Milla and turns her into a grotesque monster that attacks Lilac, Carol, Tails Jr, Zero, Master Chief, Blue Team, Cynder Jr and Sonic Sr II, who are forced to render her unconscious when Hidden Phantom sacrificed himself to calm Millia down with the help of the spirits Sonic Jr and Gemini Sunrise. Enraged, Lilac, Zero and Sonic Sr II attack and intervened Lord Arktivus Brevon and Dr. Isaak Weil from the reviving 100 monsters, Zero used his power to bring Orb to to find Lord Brevon and Dr. Isaak Weil, reunited Lilac and Zero and both of them duel for the sake of the universe. Despite Lord Brevon's confidence in regeneration, Orb, Lilac and Zero prepares to fight him to the point when the monster can no longer regenerate. Orb begins an all-out attack on Lord Brevon by continuously attacking him before he can regenerate until he kills Lord Brevon thus avenging the death of North Korean dictator as well as Sonic Sr II's defeat while Lilac and Zero defeats Dr. Isaak Weil while Carol, Cynder Jr, Master Chief and Blue Team takes Millia to the escape back which made it back to Earth.

After the monster Brevon is destroyed and is also dead for good, his Giga Battle Nizer vanished in thin air as Zero watches in confusion just before Brevon's ship is about to exploded, Zero sacrificed himself to take time for Lilac, Cynder Jr and Sonic Sr II (who is saved by Ultraman Zero and taken to M78) to reach the escape pod (which is sent back to Earth) and later taking Dr. Isaak Weil along with Brevon's ship with him until the Kingdom Stone is destroyed in the process. Shortly after the battle, Milla awakens in the UNSC medical tent in Alaskan Snowfields and sees the sky lit up by swirling, crystalline energy released from the Kingdom Stone. The three kingdoms resolve to harness the Stone's power and share it equally, thereby bringing an end to the Second Cold War. The five Ultras return to the Land of Light where Ultraman Orb is given the offer of a Star Mark and a place in the Space Garrison, which he declines as he states that he prefers to be a UNSC Spartan-II, and leaves to head back to Planet Earth to reunite Lilac, Carol, Milla, Neera, Master Chief, Blue Team and Sonic Sr II's friends. Ultraman Zero is still in confusion as to what happened but preferred to keep it to himself. Torque says goodbye to Lilac, Carol, Milla, Terrador, Cyril, Volteer, Tails Jr, Cynder Jr, Master Chief and Blue Team and returns to space while Sonic Sr II went and told Luna Ciel that Zero didn't make it back to Planet Earth which he sacrificed himself to take Sonic Sr II, Lilac, Carol, Cynder Jr, Master Chief, Blue Team and Ultraman Zero some time before he tell Ciel to take her to the Central Park in New York City for the Airport to see the statue of Zero.

In the post-credits scenes, Sonic Sr II and Ciel went to the statue of the Legendary Hero Zero in the Central Park at New York City to mourn him after his death after the end of Second Cold War. Sonic Sr II told Luna Ciel to make sure that Zero's sacrifice isn't for nothing, she stands up and expresses her faith in Zero, and the hope that he'll return someday. In Arizona, Zero's helmet as it lays shattered on the ground along with various other metal pieces. Dr. Isaak Weil survived from the destruction of the Brevon's ship along with Zero, albeit battered and tries to enact his revenge by reviving Ultraman Belial, but quickly realised that his predecessor is still alive. Ultraman Geed walks in as Dr. Isaak Weil sensed something familiar with his aura before getting killed in cold blood, which in fact Ultraman Geed is later bonded with Shadow Jr, the leader of Team Dark and son of the late Shadow Sr.