Konami announced that Metal Gear Solid: Peace Walker will collaborate with Capcom's Monster Hunter and Ubisoft's Assassin's Creed. The game will have four player hunting mission in which you fight against Tigrex, Rathalos, Velociprey and other beasts from Monster Hunter series, and Airu the cat will also play a supporting role in the game. In addition, you can also obtain monster meat after the battle, grill it and eat to replenish HP like in Monster Hunter.
The game will also collaborate with Ubisoft, Snkae will jump off certain buildings like Ezio's eagle's dive in Assassin's Creed.
Konami also revealed promotional partners for the game, Snake will be able to obtain Pepsi, Mountain Dew and Doritos chips in the game. You can obtain promo codes from these products, once you entered them in the game you can unlock the items.
Square Enix will also partner with Konami to release Metal Gear Solid action figures and Snake Sneaking Suit in June 2010.