The boob-bouncing physics and fan service of the Senran Kagura series expands to action-filled yuri with Valkyrie Drive.

Siliconera reports Marvelous' Valkyrie Drive features all kinds of fan service, including huge, gravity-defying boobs and swords... because Japan. The project will be coming out in three different forms: a console game, a social game and an anime. You can check out the trailer above for the anime to get a feel for what the game will have to offer. We have a feeling anime sequences will likely comprise of Valkyrie Drive's cutscenes and intro. The game will be a 3D action title where you will have to battle your foes in groups. You will be fighting as the two main characters, Rinka and Ranka Kagurazaka (wait, they're sisters? ewww). As you level them up by fighting together, you will unlock new weapon changes and combos as well as a better "Synchro Rate." There will also be a bunch of different interaction scenes you will get to watch, because they Marvelous knows their fans like that sort of thing.

The team behind this game are known for the Senran Kagura series, so it's no surprise that when you use special attacks against enemies or allies their costumes break. Plus, the gameplay that has been revealed thus far for the game sounds similar to Senran Kagura: Shinovi Versus and Estival Versus.

The other two projects will be known as Valkyrie Drive: Siren (a social game) and Valkyrie Drive: Mermaid (an anime). Both will, of course, have more characters that are all beautiful and blessed in the boob department. So, if you'd like to get more acquainted with all these nice boobs, *ahem* girls, Valkyrie Drive will hopefully be coming out sometime in 2015 in Japan. Stay tuned as we'll provide coverage on Valkyrie Drive's eventual Western release once more information is announced. Originally intended to be a PS Vita title, Valkyrie Drive will be hitting unspecified consoles as well.