Splatoon Raiders is associated with the Nintendo figurine line Amiibo in Wikipedia’s categories.
Amiibo is Nintendo’s toys-to-life platform, built around figurines and cards that communicate with supported games through near-field communication, or NFC. Nintendo announced the platform in 2014, and its first major figurines launched alongside Super Smash Bros. for Wii U later that year.
Splatoon has been closely tied to Amiibo since the original game. Splatoon-themed figures have unlocked items such as special clothing, music, and saved loadouts across the series. That history explains why Raiders is categorized among games that use Amiibo figurines.
A common mix-up is to treat Amiibo as a game series comparable to Skylanders, Disney Infinity, or LEGO Dimensions. Those are rival toys-to-life franchises; Amiibo is Nintendo’s platform and product line. In Raiders, the category identifies the game’s compatibility, not its genre or developer.