- This article is about the transformation in Kirby and the Rainbow Curse. For the Yarn Transformation from Kirby's Epic Yarn and Kirby's Extra Epic Yarn, see Submarine.
While in submarine form, Kirby can move freely about in the water, and can fire torpedoes. These torpedoes can be guided to their target, both in and out of the water, using the Rainbow Rope. Using a Star Dash temporarily empowers the torpedoes, allowing them to blast through Metal Blocks.
This transformation is used only in a few places in the story mode.