Gun Hunter (ガンハンター) is a GUN robot that appears in most of the stages of Sonic Adventure 2 and part of G.U.N.'s Hunter series. It's the most basic of the series of all, and from where all the other models are designed and modified from.
It attacks by shooting yellow projectiles once it spots a character. Sometimes, it might be hunched down, only to activate when a character comes near. There's a slightly enhanced model (called a "Gum Hunter"), which shoots blue projectiles to bind a character and then shoot them with the yellow projectiles. Either awards 100 points when destroyed. Inactive Gun Hunters can be found all over Weapons Bed which do not hurt Eggman when he approaches them, nor do they drop Chaos Drives when destroyed. They will still earn the player points and lock-on bonuses when destroyed, though.
Gun Hunters made a 2D appearance in Sonic Rush, as enemies on the G.U.N. battleship Huge Crisis.
Gun Hunters return in Sonic Generations with an improved look and more equipment such as miniguns and jetpacks. In the HD versions, they are encountered in City Escape, while the 3DS version features them in Radical Highway.
Locations in Sonic Adventure 2