Not unlike previous titles in the Resident Evil series, Resident Evil 6 contains a plethora of secret collectible items for you to discover throughout the game and unlock.
In total, there are 80 serpent emblems for you to find in the game, with 20 collectibles hidden in each of the game's four campaigns. Each chapter has a total of 4 serpent emblems for you to find. To collect an emblem, you'll have to shoot at it with a weapon with either one of the two characters you can play in each campaign.
Once you've collected the emblem you're looking for, you can leave the game immediately without having to progress through the rest of the chapter or reach a checkpoint.
Both the Records Menu and the Extra Content Menu will allow you to track how many emblems you've collected.
Collecting every emblem in the game will award you with 30G in Gamer Score points on the Xbox 360 and a Silver trophy on the PS3.