Rumor has it that rather than risk sinking money into a DS port-plus version of Mega Man Battle Network in Operate Shooting Star, Capcom may instead simply lift the multiplayer mode from the title and release it independently on Nintendo's DSiWare downloadable video game service. The mini-game, known as "Star Colosseum," allows six players to battle wirelessly to collect stars using one copy of the game and a variety of familiar Battle Network and Star Force faces. The rumor also says there could be additions to the download version, such as multiplayer via Wi-Fi and perhaps one new playable character.
Capcom has yet to comment on this, but we'll keep you posted if anything more develops.
Source: Protodude's Rockman Corner