Komikai is a combination of collectible trading cards and comic books. This series reprints Marvel various comics with back covers replaced by pin-ups of various Marvel characters. All have other interior changes from originals. Sold singly and in in plastic blister packs of 5 and 7 comics, apparently randomly grouped like baseball cards, packaged with hard, transparent, plastic cases called "Kaiza" that help to protect the Komikai during game-play, and a magnifying glass (called a "Magna-Kaiza") to facilitate reading.
Komikai is played like marbles. Kaizas, each containing a mini-comic, are arranged standing up, and players take turns to try to knock them down with a throwing Kaiza. Each Komikai has a points value, from 50 to 500. Players decide whether to play for bragging rights or for keeps.