The Decisive Battlefield is an otherworldly area in the Dream Kingdom that serves as the sixth and final level of Team Kirby Clash Deluxe. It introduces one Toughest category boss to the game in the form of the final boss, King D-Mind.
The Decisive Battlefield is a cosmic location with rocky ground. The land is ablaze, though this does not affect gameplay. A ruined structure is settled in the distance. In the background, a planet appears to be surrounded by a circular vortex, and giant stones revolve around it. This background changes from different shades of blue to purple.
During The True Final Battle, the area changes drastically. The vortex moves from the left side of the screen to right, and is much closer to the land. The rocky ground is purple and no longer flaming. The ruins are gone, instead replaced with colorful, small stellated dodecahedrons. These prisms, coupled with the symbols that float through the air, suggest that the battle takes place in or around Another Dimension.
This invader has slipped between dimensions from a mysterious civilization!”
— Tougher: Parallel Susie Description • Super Kirby Clash
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A caped wizard traveled across dimensions and summoned the terrifying King of Darkness!”
— Tougher: King D-Mind Quest Description • Super Kirby Clash
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It's Landia EX, the four-headed dragon, with the power of its crown unleashed! Dodge attacks from four directions!”
— Toughest: Landia EX Party Quest Description • Super Kirby Clash
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Her iron craft dances through the air, and her high-tech arsenal relentlessly attacks Team Kirby!”
— Toughest: Parallel Susie Party Quest Description • Super Kirby Clash
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Time to face off against the King of Darkness yet again! Don't let the beams from his giant eyeballs mow you down!”
— Toughest: King D-Mind Party Quest Description • Super Kirby Clash
Trivia
The normal version of the Decisive Battlefield appears to be an apocalyptic version of the Castle Village, as one can see the ruins of what appear to be the Quest Board and the Shoppe, as well as a tower and pieces of the fence.
