The game follows Geo Stelar, a fifth-grader in Echo Ridge who merges with an FM-ian named Omega-Xis after mourning the supposed death of his father.

[4][5] The Mega Man Battle Network series had concluded with the sixth game in 2005, with the developers citing the new DS hardware as their reasoning for its ending.

[9][10] In the Wave World, the player is able to encounter viruses, during which the game switches to a 3D view from Mega Man's back, and where movement is restricted to left and right.

Players can also use the Brother Band network to share favorite Cards, Star Force transformations, or status upgrades as well as send e-mails.

Mega Man Star Force takes place in the fictional year of 220X,[12] when emphasis on internet technology has lessened, and instead, the world has become networked through use of EM waves.

Though cyber worlds and NetNavis still exist in Star Force, human dependency on them has greatly decreased, and people no longer have Navi companions.

FM-ians can traverse in both worlds, and also possess the ability to physically merge with human beings through a process called EM Wave Change.

[4][8][14] Geo has been mourning the disappearance of his father Kelvin after the explosion of the space station Peace three years ago, and as a result, he has not been attending school.

Using it, he sees Omega-Xis, who recognizes Geo as Kelvin's son and quickly performs an Electromagnetic Wave Change with him, transforming into the Star Force version of Mega Man.

Omega-Xis is considered a traitor by the FM King because he has stolen the mysterious Andromeda Key, and he also claims to know about the events leading up to Kelvin's disappearance.

[17] To promote the new game, Capcom commissioned an anime series produced by ShoPro and Xebec, which began airing on October 7, 2006,[18] as well as a manga adaptation by Masaya Itagaki in CoroCoro Comics.

[20] The game's music was composed by Yoshino Aoki and Mitsuhiko Takano and released as the first disc of the Shooting Star Rockman 1 & 2 Original Soundtrack[d] compilation.

[24][25][26] Reviewers generally expressed disappointed about the lack of changes from the Battle Network series, particularly in gameplay and visual style;[4][9][10] Colin Moriarty wrote for IGN "it's more likely to leave the gamer mystified, feeling positive they've been down this road countless times before.

Instead, we have more of a sidestep than a step forward," although they felt the game would be fine for people who hadn't played any of the prior Battle Network entries.