|This article is about a/an monster in Kamen Rider Build.|
An unidentified man was experimented on and turned into the Needle Smash.
The Needle Smash was seen on security footage in an unknown context. It later encountered and attacked Sawa Takigawa, an investigating journalist, but was interrupted by Kamen Rider Build and quickly defeated by Rabbit Vortech Break. The Smash essence was absorbed into a blank Full Bottle, leaving the man behind. The Bottle was later purified into the Harinezumi Full Bottle.
- A multitude of needles can stretch out from his back.
- He can use his extended sharpened nails for combat to stab or slash his prey/enemies.
This Smash Bottle contains the essence of the Needle Smash. Later it purified into Harinezumi Fullbottle.
Behind the Scenes
His suit actor is Hajime Kanzaki (神前元 Kanzaki Hajime)
- Kamen Rider Build
- Episode 1: That One with the Best Match
- Episode 2: The Innocent Runaway (flashback; archive footage only)
- Episode 6: Moonsault of Anger (flashback; archive footage only)
- Episode 9: The Trap of Project Build (flashback; archive footage only)
- Episode 16: The Weaponry Hero (flashback; archive footage only)