The 8-ball is a mechanic in the Octo Expansion.
The 8-ball is a plastic sphere, made to look like an eight billiard ball. It is a black ball with round pink neon on one side and the number "8" marked on it.
The 8-ball will roll if it is hit by ink, though it can also be moved slightly if the player or an enemy touches it. Additionally, it will roll down slopes automatically. If the player moves it with their ink, it leaves behind a trail of their ink as it rolls and can ink objects such as Inkfurlers. It slows down faster on softer surfaces, such as sponges. If an 8-ball comes into contact with an 8-ball launcher, it is launched in the direction of the launcher. If an 8-ball comes into contact with an 8-ball switch, the switch vanishes and an effect triggers, usually to help the player progress. Most tests in the Octo Expansion that feature 8-balls require the player to guide one to a goal in order to pass, in which case the 8-ball falling into an abyss causes the player to immediately fail the test and be splatted.
8-balls (and other associated objects) appear in the following missions:
|Level||Use of Ball||Other Dedicated Props||Stoppers|
|Wassup 8-Ball Station||Dedicated goal||✓|
|Bumpin' 8-Ball Station||Dedicated goal||✓||✓||✓|
|Fly 8-Ball Station||Movable launchers to hit bumpers||✓||✓|
|Tubular 8-Ball Station||Dedicated goal||✓||✓|
|Totally 8-Ball Station||Clear bumpers to reveal launchpad to standard goal||2||✓||✓|
|Bodacious 8-Ball Station||Dedicated goal||✓|
|All That 8-Ball Station||Billiards-like game to hit switches||2||✓|
|Heinous 8-Ball Station||Dedicated goal||✓||✓|
|Swass 8-Ball Station||Bingo game to make a line of 3||3|
|Wack 8-Ball Station||Dedicated goal||✓||✓|
Unreleased multiplayer mode
Unused code in Splatoon 2 suggests that a Ranked Battle mode featuring an 8-ball was in development. This mode would have included an 8-ball at the center of the stage and the players would have had to guide it to the other team's goal.
- The 8-ball station subtitles are references to the sayings on Magic 8-Balls.
Names in other languages
|French||Bille 8||Marble 8|
|Spanish (NOA)||Bola 8||8 ball|