Needle Smash

The Needle Smash appeared in 2017 TV series called Kamen Rider Build. The Needle Smash is a Needle/Hedgehog-themed Smash. It's actually an unnamed man who was a subject of Faust's experiments, turning into the Needle Smash (ニードルスマッシュ Nīdoru Sumasshu). His Smash essence was used as the basis for the Harinezumi Full Bottle.

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.

Arsenals

 * 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.