Mega Man Star Force 2

MegaMan Star Force 2 (流星のロックマン2) is the sequel for MegaMan Star Force for Nintendo DS. Not much about it is know by now. It was released in November 22, 2007 in Japan and there are two versions: Berserk × Shinobi and Berserk × Dinosaur. It is known as Zerker × Ninja and Zerker × Saurian in English speaking countries.

Tribe On
There are three new transformations ("Tribe On"):
 * Wood Ninja (グリーンシノビ, Green Shinobi). Specials: Shinobi Shuriken and Demon Flurry
 * Thunder Zerker (サンダーベルセルク, Thunder Berserk). Specials: Thunder Slash and Thunder Bolt Blade
 * Fire Saurian (ファイアダイナソー, Fire Dinosaur). Specials: Dino Cannon and Genocide Blazer

The transformations can be combined (Double Tribe):
 * Ninja Saurian / Saurian Ninja (Special: Emma Gale Garrison)
 * Zerker Ninja / Ninja Zerker (Special: Elemental Blade)
 * Saurian Zerker / Zerker Saurian (Special: Vanishing Blazer)

And all three transformations can be combined in one:
 * Tribe King (Specials: Czar Delta Breaker)

Main Characters

 * Solo
 * Hollow
 * Dr. Vega
 * Rogue
 * Geo Stelar
 * Omega-Xis
 * Hope Stelar
 * Sonia Strumm
 * Zack Temple
 * Bud Bison
 * Luna Platz

Minor Characters

 * Aaron Boreal
 * Detective Bob Copper
 * Tom Dubious
 * Patrick Sprigs
 * Claud Pincer
 * Hyde
 * Rich Dotcom
 * Gerry Romero
 * Osa Agame
 * Kenta Yagi

Bosses

 * Taurus Fire: A revived form of the boss from the game's predecessor.
 * Dark Phantom: The merging of Hyde and Ghost.
 * Yeti Blizzard: The merging of Rich Dotcom and Yeti.
 * Plesio Surf: The merging of Gerry Romero and Plesio.
 * Queen Ophiuca: A revived form of the boss from Megaman Star Force.
 * Cancer Bubble: Optional boss who returns from the first game.
 * Rogue: The EM Wave Form of Solo.
 * Terra Condor: The merging of Osa Agame with Condor.
 * Harp Note: The merging of Lyra and Sonia, she was tricked into fighting her friend.
 * Gemini Spark: Optional boss who returns from the first game, with a few changes.
 * Hollow: Vega's servant, inside the shell is a person made of matterwaves
 * Kung-Foo Kid: Optional boss.
 * Le Mu: EM Wave creator, and final boss of the game's storyline.
 * General Auriga: Secret Area mid-boss.
 * Apollo Flame: Secret Area boss.

Comparison with Battle Network
Takes on a Battle Network 2 and 6 theme, with 2's plot unrolling scenario and 6's desperate attempts to control a great power.

Misc.

 * TK City
 * Star Carrier

Trivia

 * There is a slight gag on the popular 80's movie Ghost Busters when Geo and friends go to see a movie at Willshire Hills. The characters like the Ghost Busters are renamed Ghost and even use a similar vacumm to exterminate the ghosts which Geo can later use.