This story is a parody of Astro Boy.
Tsugio, a boy raised by a robot-geek father, is a big fan of Astro Boy. One day, he brings home a stray kitten and names it Astro Cat because it resembles Astro Boy. However, the cat is accidentally hit by a car driven by a newlywed alien couple. In an attempt to revive the cat, the alien couple unintentionally turns it into a super robot cat, similar to Astro Boy. The new robot, Astro Cat, protects Tsugio from bullies and solves mysterious incidents around them.
1986/07-1987/02 Serialized in Nikoniko Comic (Sekaibunkasha)
English Edition Published by Digital Manga (2013)