Thread:ComicReadingGamer/@comment-5688420-20190102160455/@comment-5688420-20190103172913

One was the original MUGEN Voltage anime, which ran from 2005 to 2008. The original took a few liberties with some of the character deaigns and stories, and ended with a gecko ending, since the LN was not yet over at the time of release.

The other one was MUGEN Voltage Zenkai, which ran from 2012 to 2014. This one was more accurate to the original LN, and also wrapped up the story in a much more satisfying way, since the LN also ended that same year.

Both adaptions were done by Madhouse.