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Ever since they encountered aliens on the moon, humanity's technology has developed by leaps and bounds. Half a century later, even though most have it easy, Robby Yaji and Hacchi Kita cannot seem to catch a break in this advanced society. Robby—a man perpetually struck by misfortune—owes large sums of money to debt collectors due to his poor investments in shady get-rich-quick schemes, and Hacchi finds it difficult to get over the boredom of his mundane life. The two end up on an adventure of a lifetime when loan shark boss Yang sends Hacchi to collect the money Robby owes. Rather than pay up, Robby blasts off into space and heads to Isekandar, a planet that supposedly brings happiness to anyone who visits. Seeing a chance for some much needed excitement, Hacchi tags along with Robby on this journey filled with alien encounters, giant robot battles, and all sorts of troublemaking—all the while avoiding Yang and his cronies who are desperately combing the universe to find them. [Written by MAL Rewrite]

Set in the year 2100 where the world is tied together by a computer network. The children of the world become Web Divers, adapting their consciousnesses into data, and love to play together in the cyber park called Magical Gate. However, a mysterious computer virus appears beginning to destroy Magical Gate from the inside out. In cyberspace, programs called Web Knights have been created to protect the children. But, the computer virus has turned all the Web Knights against the children. The only Web Knight to escape the "brainwashing" is Gladion. Gladion seeks the help of Kaito Yuki, a Web Diver who is in the fourth grade. (Source: ANN)

We follow the daily events of Pac as he saves Pac-World. Together with his friends Cyli and Spiral, Pac and his buds face the issues of being teenagers while also protecting Pac-World from a ghostly army led by the evil Betrayus. Pac-Worlders do not want Betrayus and his ghostly minions returning from the Netherworld and wreaking havoc. So, President Spheros teaches Pac and his pals the legend prophesizing a round yellow Pac-Worlder rescuing the planet. Pac, the only round yellow citizen, is the man for the job. Each adventure follows Pac and his friends as they try to return the ghosts to Netherworld, saving Pac-World. (Source: AniDB)

Heroman specials released in DVD/BD volumes 2, 5 and 8.