F-6t Big Foot

Bigfoot is a boss in the games Sonic Adventure 2, Shadow the Hedgehog, and makes appearances in Sonic X. It is a G.U.N. robot, controlled by a soldier.

It made its first appearance in Sonic Adventure 2, trying to capture Sonic, who is framed for stealing a Chaos Emerald, an act committed by Shadow the Hedgehog.

The Bigfoot is a mechanical walker with has a machine gun and missile launchers. It is also capable of hovering. Its main weak-point is the cockpit. It requires four strikes to the cockpit to defeat it.

It was confirmed that a G.U.N. robot that was in Shadow the Hedgehog was a Bigfoot when Omega said, "Vital human life signs approaching. Enemy mech Bigfoot detected!"

Weapons
Bigfoot has two main weapons, a machine gun (Gatling Gun) and missiles (Hot Shot and Flying Dog also have these weapons, but also have a lock-on plasma cannon equipped with them.)

Similar G.U.N robots
There are variations of the Bigfoot walker, possibly different models of it. Both of them only appeared in Sonic Adventure 2.
 * Hot Shot: Hot Shot is exactly the same as Bigfoot, with the same weapons and capabilities. However, it also has an added lock-on laser on its front. Hot Shot is deployed to fight Shadow when he was set free from stasis by Dr. Eggman.


 * Flying Dog: Flying Dog is basically the Hot Shot without legs. Without the walkers, Flying Dog remains hovering during its operation. It also has an improved defense, as it takes five strikes to destroy. When four strikes has been dealt, the Flying Dog simply stops using missiles and machine guns, and instead just launches the plasma cannon repeatedly. It was deployed on Prison Island against Rouge the Bat, who was stealing three Chaos Emeralds from the vault.

Trivia

 * Bigfoot obviously got his name from the mythological creature of the same name.