"Mega Man Star Force, known in Japan as Shooting Star Rockman (流星のロックマン, Ryūsei no Rokkuman?), is a Mega Man action role-playing video game published and developed by Capcom for the Nintendo DS handheld video game console. It was released on December 14, 2006 in Japan, and was released in North America on August 7, 2007.
The game was released in three separate versions simultaneously, subtitled Pegasus (ペガサス, Pegasasu?), Leo (レオ, Reo?), and Dragon (ドラゴン, Doragon?). However, the Dragon version is exclusive in North America to GameStop stores.
Despite many similarities, Mega Man Star Force is considered a separate entity from the Mega Man Battle Network series. Both an anime and manga were produced several months prior to the game's Japanese release date and are currently running in Japan. So far, only the anime has been adapted into English."
Source: Wikipedia, "Mega_Man_Star_Force", available under the CC-BY-SA License.