Galeem

"You know what happens if we don't kill that thing?! First, we die! Then, EVERYONE dies! It'll eat its way through everything in the universe 'til there's NOTHING LEFT!" -Tara Sachs

Galeem (キーラ, Kiira) is one of the two main antagonists of Super Smash Bros. Ultimate 's Adventure Mode: World of Light along with his dark counterpart Dharkon. He is described as "Lord of Light" and the "ultimate enemy" in the World of Light. His goal is to recreate the universe in his own image. He is known to be the overall most powerful villain and being in the history of video games.

World of Light
Prior to the events of the mode, Galeem attacks the fighters, commanding an army of Master Hands. He turns into a black hole and collapses which launches a devastating inescapable attack. slaughtering all fighters with the sole exception of Kirby and Tara Sachs. A devastated Tara flies away to Kirby in hopes of surviving. A beam of light misses her, but it rips off her wings, making her plummet to her doom.Kirby catches her they both warp away before the beams could eat them alive Galeem takes away every non-playable characters's soul. His attack goes on to engulf the entire universe in a burst of light, leaving what is left of the world and galaxy a barren wasteland inhabited by hostile spirits and puppet fighters cloned from the fighters imprisoned by him. Kirby and Tara appear on a cliff which was the new world that Galeem has constructed. Tara breaks down in tears with what has happened to the fighters, all strong negative emotions consuming her. Kirby comforts her and the two set out to defeat Galeem and save all who live. After Galeem's first defeat, Dharkon appears along with his army of Crazy Hands, driving Galeem away. Galeem later returns when Dharkon is defeated and flees into a dark portal, with Galeem in pursuit.

In the final world, Galeem wages war with Dharkon, while also seeking to destroy the fighters. The true ending can be obtained by defeating both Galeem and Dharkon. Both Galeem and Dharkon are finally defeated by the fighters. But not before Tara unleashed her ultimate suicidal attack (she suomehow survived her kamikaze attack); hell-bent on killing on them both, sinking into the ocean and exploding thereafter.