First image revealed on the cover of Game Informer.

big sister - Big Sisters confirmed for BioShock 2

The April issue of Game Informer magazine will feature the first solid info on Take-Two's BioShock 2.

"That's right, the title that rocked the game world just two years ago is back and looking more amazing than ever," explains the Game Informer pre-release blurb. "We've got a full 10-page spread with tons of exclusive info and art on the return to Rapture. As the player returns the underwater city, the Big Sister awaits you."

The magazine's cover features the previously rumoured Little Sister character, which appears to not only be a female version of the Big Daddy, but also a much more agile foe.

BioShock 2 is scheduled for release prior to November 2009, although Take-Two hasn't confirmed platform details.