Kishiwada-hakase no Kagakuteki Aijou

The hero is Dr. Kishiwada, a brilliant but demented scientist, who creates bizarre mechas, battles the forces of evil, or just mucks about. There are many parodies of B-grade sci-fi movies and of TV. Crazy, slick, and very funny.

source https://readmanga.re/manga/kishiwada-hakase-no-kagakuteki-aijou/