The upcoming crossover game Accel World vs Sword Art Online: Millennium Twilight just landed itself a fourth trailer just before the Japanese release of Bandai Namco's action RPG.

The trailer shows of a great deal of the game-play, particularly the combat, while also giving players a glimpse into the user-interface. The trailer also provides a brief rundown of the story; Yui from the Sword Art Online franchise is kidnapped at the hands of Personna Babel. It's up to the many characters from both worlds to team up and rescue her.

In addition to the fourth official trailer, Accel World vs Sword Art Online: Millennium Twilight also got a second TV  commercial.

Accel World vs Sword Art Online: Millennium Twilight releases in Japan on March 16 for PlayStation 4 and PlayStation Vita. The western release is scheduled for this summer, no no exact date has been announced as of yet.

Both Trailers can be viewed below: