Like Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 2: Substance, The Twin Snakes allows the player to collect dog tags from enemy soldiers. In contrast to Metal Gear Solid 2, collecting the dog tags in The Twin Snakes does not grant any rewards as the stealth camouflage and bandana are unlocked depending on the ending of the game, just like in the original Metal Gear Solid.Overall, 154 Dog Tags can be obtained.