Needle Smash

The Needle Smash is a hedgehog-themed Smash monster created by Faust from an unnamed man and an antagonist in Kamen Rider Build. He is the first Smash monster to appear.

History
The Needle Smash was created when an unnamed man was experimented on by Faust with Nebula Gas.

Set loose on the city, the Needle Smash attacked investigative journalist, Sawa Takigawa, but was fought off by Kamen Rider Build when he entered the scene. Build defeated the monster with Rabbit Vortech Break and absorbed its essence into an empty Fullbottle, reverting the man back to his original human body.

Needle Smash's extracted essence was later used as the basis for the Harinezumi Fullbottle.