Metal Gear Solid: Rising lynchpin Raiden is all set to moonlight in Assassin's Creed: Brotherhood.
Joystiq reports that you'll unlock the Raiden skin when you've finished the Animus' new virtual training mode. See the screen below for proof.
This wouldn't be the first time there's been some cross-fertilisation between Ubisoft and Konami's respective franchises. Assassin's Creed's Altair popped up as an easter egg in Metal Gear Solid 4.
Assassin's Creed: Brotherhood is due on PC, PlayStation 3 and Xbox 360 on 19th November and is shaping up very nicely indeed. Metal Gear Solid: Rising is a little further out – expect to see that on PC, PlayStation 3 and Xbox 360 some time next year.