Occasionally some of them go 'maverick' and try to harm others or just go berserk. For those of you who aren't familiar with the games, reploids are robots with the power

It's about how Sigma went from being a maverick hunter, to the head maverick. Let's take a look at Maverick Hunter X: The Day of Sigma. That's right, back in 2005 Capcom and Xebec combined efforts and came up with an OVA prequel for the Megaman X franchise. The series was the first of many spin-offs of Capcom's Megaman franchise and has been highly successful, receiving eight sequels (one being the Command Mission RPG), and a prequel OVA.