Bumper

Bumpers are a kind of surface appearing in Splatoon and Splatoon 2.

Function
Bumpers can be found in several different stages, Octo Valley and Octo Canyon. They will be colored in the neutral color corresponding to the ink used by each team; for example, in a pink versus green match, bumpers will be colored cyan.

Bumpers cannot be covered in ink and are generally too tall to be jumped over, allowing them to serve as protective borders for Inklings.

Trivia

 * The official name of Bumpers was unknown until the release of the Octo Expansion and it's Mem cake.