A stage based on the ruins atop Mt. Coronet in the Sinnoh Region of Pokémon Diamond and Pearl.
Pokémon appear in the throne area at the center of the ruins. Either Dialga, Palkia, or Cresselia appears.
Dialga and Palkia share three attack methods: tilting the screen, breaking the floor with an earthquake, and using laser attacks.
Aside from the three commonly shared attacks, Dialga can slow down all fighters and use Roar of Time to damage and launch any fighters it touches.
Aside from the three shared attacks, Palkia can cut all fighters’ weights in half, flip the stage upside down, and mirror the stage. If the stage direction changes, fighters’ inputs also change directions.
Cresselia attacks directly with sonic waves and boomerangs. Even if you hide in the cave, they travel through the ground and attack you.