The Empyrean is a mountainous area in the Dream Kingdom that serves as the fifth level of Team Kirby Clash Deluxe. It introduces Tougher category bosses to the game.
The Empyrean is a a rocky location set at a high altitude—some clouds float at ground level here. Massive, unnatural spires topped with stars are erected in the background. Sharp rock formations and crystals are also present. The sun shines down from the sky through a thick cloud layer. During stormy weather, the clouds darken, the sky turns purple, and lightning cracks.
The Empyrean is named after a location in ancient cosmology. Empyrean is synonymous with heaven or paradise, being a part of the celestial spheres. It is also associated with fire, aether, and God.
The Empyrean is the only area that consists of bosses that appear in the Decisive Battlefield, Tough: Landia to Tougher: Landia EX/Parallel Landia and Tough: Taranza to Tougher: Dark Taranza.