Eternal Champions was adapted by the UK Sega Magazine's Sonic the Comic in a stand-alone magazine Eternal Champions Special, which introduced the main characters and served as an adaptation to the game. The characters also appeared in two stories in the main Sonic the Comic series, first in Eternal Champions (issues 19-24) and then Larcen's Revenge (issues 37-40) which dealt with the professional thief Larcen Tyler returning to 1920s Chicago and working with the female ninja Shadow Yamoto to take down the crime boss who killed him. Eternal Champions was the only non-Sonic-related Sega property to receive a special issue of Sonic the Comic.

MIMP was written by Dwayne McDuffie (initially working from a plot by Craig Mitchell, R.L.Stern, and Tim Bogart), and drawn primarily by Gil Kane and Ernie Colón (with Nelson Dewey) was released by Harvey Comics in 1991. It ran for four bi-monthly issues, despite an open ending and promises that sales had justified making it monthly.

In this series, a spell by Warlock intended to shrink the monsters who did not side with him was botched by Ogre, resulting in the shrinkage of all the monsters who were then flung, within boxes with room-like interiors, to Los Angeles, California. The good monsters ended up in the home of ne'er-do-well Burt Convy, High School student Jack Miles and his studious younger brother, Tom, in Burbank. The series ended with both sides battling inside a dollhouse bought for a little girl named Theresa, who was scared away by Spring Heeled Jack. They also dealt with Frank Rook, The Exterminator (a parody of The Punisher), and Swamp Beast helped them defeat a Tyrannosaurus Rex who would grow when exposed to any form of radiation, such as smoke detectors and microwave ovens.
Beginning with the second issue, Universal Studios began receiving credit in the indicia for the use of Frankenstein's Monster, Mummy, The Invisible Man, and The Phantom of the Opera, although the characters originated in public domain literature and bore no particular resemblance to their cinematic counterparts at Universal. Marvel Comics reissued the comic stories in newly formatted annuals, and World Publishing (an imprint of Egmont Publishing) followed by a Monster Wrestlers in My Pocket annual—which had no continuity with the previous series—in 1995, with a cover dated 1996.
Clearly depicted with the evil monsters were Medusa and Spring-Heeled Jack, the two most prominent evil monsters after Warlock, along with Ogre, Cerberus, Minotaur, Windigo, Cyclops, Zombie, Siren, Ymir, Karnak (probably Maahes), Tengu, Bigfoot, Spectre (Grim Reaper), Sebek, Charon, and Ghost, though the evil monsters were most often shown in amorphous crowds. Dr. Jekyll is twice force-fed—first by Warlock, then by The Monster—the potion that makes him into Mr. Hyde, but he turns maverick, not much more willing to support Warlock than Vampire.
The "Sid's Bits" editorial in issue 2 of the comic contains a partial listing of good and evil monsters; included in the evil side is a character identified simply as "the Electronic Monster." There is no known figure in the series bearing that name.

Ecco the Dolphin is a 6-part Sega Superstars story revolving around the titular Ecco the Dolphin. It is the first of two Ecco stories, the second being Return of Ecco the Dolphin. The strip continues straight on from the first story after a brief recap

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