Namekujira

Namekujira appeared in 1972 TV series called Kamen Rider. Namekujira (ナメクジラ Namekujira) is a slug monster of Shocker. He was able to liquefy and reform his body and emit acid from his mouth. After being given an artificial brain he could spew radioactive flames from his mouth. He was Destroyed by Kamen Rider #2's Rider Kick and Rider Two-Step Reversal.