Dynamic Heroes

Dynamic Heroes is a digital manga by Kazuhiro Ochi that presents the most notable characters from the franchises by Dynamic Productions in their anime format in a massive crossover. It involves the series: Devilman, Mazinger Z, Cutey Honey, Great Mazinger, Getter Robo, Grendizer, Demon Lord Dante and Dororon Enma-kun.

Summary
The manga follows a format similar to anime the characters appeared in featuring similar storylines like in Mazinger Z vs. Devilman or Great Mazinger vs. Getter Robo with a few extra elements. It also gave the Invaders from the crossovers between the Mazinger and Getter Robo series as the Damdom.

One year after the battle with the Vegan Empire, Koji dreams about Maria and decides to go visit her with a jealous Sayaka tagging along. However, Earth is approached by the Damdom, the aliens that sent the numerous monsters to attack Earth times before such as Gilgilgan. The Spazer piloted by Maria herself is chasing the Damdom ship but is ambushed. Koji manages to help her with help from Tetsuya and the Great Mazinger, however threats keep popping up from the increased activity including threats that required the Getter Robo G to mobilize and a teammup between Devilman and Cutie Honey who battle an alliance between their respective enemies.

Mazinger

 * Koji Kabuto & Mazinger Z
 * Sayaka Yumi & Diana A
 * Tetsuya Tsurugi & Great Mazinger
 * Jun Hono & Venus A
 * Duke Fleed & Grendizer
 * Hikaru Makiba
 * Maria Fleed
 * Dr. Hell
 * Madam Janus

Getter Robo

 * Ryoma Nagare
 * Hayato Jin
 * Benkei Kurama
 * Michiru Saotome

Devilman

 * Akira Fudo/Devilman
 * Lala
 * Lafleur
 * Sirene
 * Ebain
 * Ganda
 * Zaldover
 * Mermane
 * Lyamon
 * Bela
 * Memu

Cutie Honey

 * Honey Kisaragi/Cutie Honey
 * Sister Jill
 * Panther Zora

Dororon Enma-kun

 * Enma
 * Chapeuji
 * Yukikohime
 * Kappaeru
 * Duhracula
 * Crotch-Splitter
 * Head Butt

Demon Lord Dante

 * Dante