Skull Noise

Skull Noise (スカルノイズ) is a Keyblade that can be wielded by Sora and Riku in Kingdom Hearts 3D: Dream Drop Distance. It is obtained after defeating the Hakozaru in Traverse Town.

Design
The Keyblade's name is derived from "skull", a common visual element in The World Ends With You, and "Noise", a type of enemy from the same game.