A line of toys developed and marketed by Konami. It features highly posable 15 cm tall dolls named MMS (multi movable system) designed by Masaki Asai. Products are periodically released in pairs designed by popular manga artists and designers.
These dolls can be customized with various mechanical parts, usually consisting of some sort of weapons system. Each doll comes with an access code to unlock the character on the Battle Rondo MMO computer game. In-universe, the dolls are intended to be 1/1 scale 15 cm tall robots, which explains the minigirl fetishism associated with much of the fanart.
A 12-episode anime adaptation of the toyline aired from October to December 2012.