Super Evolved Lifeforms Mutamits

Super Evolved Lifeform Mutamits (超進化生命ミュータミット) are a breed of kaijin created by Lem Kannagi of Foundation X, humans he induced mutation on.

Mutamits

 * Katal (カタル) is one of Lem Kannagi's subordinates. Foundation X experiments have turned him into a Mutamit known as Suddendath (サドンダス), who resembles a dragon with a breath weapon of bright blue energy. Katal fights Kamen Rider Fourze and the Kamen Rider Club before meeting his end at the hands of Kamen Rider Fourze Rocket States's Rider Tailspin Crusher. Katal's Mutamit form Suddendath is based on the design of Suddendass of the Skyrider movie. Katal is portrayed by Dante Carver (ダンテ・カーヴァー).
 * Suddendath Beta (サドンダスβ): The upgraded version of Suddendath and main antagonist of the Kamen Rider Fourze Hyper Battle DVD: Rocket Drill States of Friendship. He was destroyed by Fourze Rocket Drill States.
 * Solaris (ソラリス) is one of Lem Kannagi's subordinates. She has also been transformed into a Mutamit by Foundation X who demonstrates catlike abilities without transforming, but never transforms into full Mutamit form. Instead she utilizes a Zodiarts Switch to become a copy of the Unicorn Zodiarts. She is defeated by Kamen Rider Double CycloneJokerXtreme. Solaris is portrayed by Sanae Hitomi (人見 早苗), who previously portrayed Quarks agent Shion in Kamen Rider W Returns: Kamen Rider Eternal.