They are the sixth and final game in the Mega Man Battle Network series, and involves Lan's family and MegaMan.EXE moving to Cyber City, only to need to stop the returning WWW (World Three) once more from re-awakening the Cybeasts.

The international versions of the games also removed a significant amount of content, primarily due to Konami not localizing Shin Bokura no Taiyō: Sabata's Counterattack for Western territories.

A successor to the Battle Network series, titled Mega Man Star Force, also released in 2006 for the Nintendo DS.

However, once Baryl's father, his only true friend was killed in battle, Wily began to feel the past thoughts of revenge and modified Colonel to become a military grade Navi.

However, instead of separating, they sacrifice themselves to destroy the Cybeast once and for all; afterwards, both of the Copybots explode, leaving Cyber City in ruins, and forcing the Hikari family to move back to ACDC Town.

As a gift, Baryl, whom was survived and not found in the wreckage, sends Lan Iris' Copybot, allowing MegaMan to stay in the real world all he wanted.

Another one is a slight change in the Navi Customizer, in which parts can be placed off the map, allowing the player to install more programs, but at the risk of having a bug.

[10] Like previous entries, players are able to fight and trade with each other using the Game Boy Advance link cable,[9][11] now including support for the Wireless Adapter.

[17] Mega Man Battle Network 6 released in Western territories starting on June 13, 2006;[1] the international versions of Battle Network 6 had significant amounts of content cut, including a crossover scenario with Shin Bokura no Taiyō: Sabata's Counterattack, which Konami did not localize outside of Japan due to poor sales of the first two games.

[3] Both versions were also included in the Mega Man Battle Network Legacy Collection in 2023 for PlayStation 4, Nintendo Switch, and PC.

[5][9][11] Mark Bozon wrote for IGN "you can see more than ever that the series is beginning to get lazy with presentation, as less and less unique animation is being used to tell the story",[5] which GameSpy agreed with.

[11] GameSpot felt the music and sound effects were "serviceable", albeit holdovers from Battle Network 2,[9] while GameZone called them "boring".

[38][39][40] As a whole, the Star Force series was not nearly as successful as Battle Network, which was attributed in retrospect to its perceived lack of changes;[7] after the release of two sequels and Rockman.EXE: Operate Shooting Star (2009)–an enhanced DS port of the first Battle Network game released only in Japan–Capcom would discontinue development on a fourth entry due to poor sales.

[47] Other characters and elements of Battle Network 6 not present in Beast would be adapted into the Beast+ season, as they also do in the last chapters of Ryo Takamisaki's manga.