Elysium

Elysium, known in Japan as Heaven (ヘブン), is a "perfect world" which orbits high over Terra (Earth in Japan). The Master lived on Elysium with Mega Man Trigger (aka MegaMan Volnutt) and Mistress Sera. Sera is the Mother Unit in charge of the Elysium system, however, The Master, after going down to Terra with Mega Man Trigger and seeing the people there living happily, he saw it was better than living forever on the perfect, yet cold world of Elysium, and asks MegaMan Trigger to end the system of Elysium.

Reaverbots in the ruins:

 * Barukatche
 * Gabunrii
 * Guruguru
 * Harin
 * Horokko
 * Boss: Gargarfummi
 * Boss: Rimblemenji
 * Boss: The Mids
 * Boss: Wojigairon
 * Final Boss: Sera

Trivia
In one of the Mega Man X5 endings, Mega Man X mentioned that he wanted to create an Elysium.