Japanese: 別冊コロコロコミック（べっさつ - ）

Size: A5
Cost: 440 yen
Release Date: Bi-monthly (Even); 30th
Circulation: 1987/04 - ?

Publisher: Shogakukan

Links:

Official Site

Info:

Official title is Bessatsu Coro Coro Comic Special, but is generally called Bessatsu Coro Coro Comic.