The optional eyepiece
The shadow agents are a series of outfits released in 2021 that each sold for 450 coins. An optional eyepiece was also sold for 300 coins (making it more expensive than most items). The shadow agents are Easter Eggs that reference the developers.
Another skin, Shadow Agent D, is a version of these skins. It does not reference a developer and is unreleased.
Included heads in all four agent outfits[]
Shadow Agent head (blonde)
Shadow Agent head (pale)
Shadow Agent head (tan)
Shadow Agent head (dark)
Shadow Agent #015[]
Rust colored skin referencing Joja15. (15, #15)
Shadow Agent #015 skin
Shadow Agent #015 Helmet accessory
Shadow Agent #081[]
Turquoise colored skin referencing Rocky Balboa. (Rocky fought 81 boxing matches in the Rocky Balboa series)
Shadow Agent #081 skin
Shadow Agent #081 Helmet accessory
Shadow Agent #008[]
Army Green skin referencing Silk Spider. (Spiders have 8 legs)
Shadow Agent #008 skin
Shadow Agent #008 Helmet accessory
Shadow Agent #618[]
Eggplant colored skin referencing Dipper. (June 18 [6/18] is the birthday of Gravity Falls which is where Dipper's name originated from.)
Shadow Agent #618 skin
Shadow Agent #618 Helmet accessory