A shooting game where the focus isn’t on killing opponents (although that’s sill important), but more on covering the arena in your team’s colour. The brilliance of the game is in how all parts of its gameplay work together, as while you opponents ink hurts you, your own colour ink allows you to zoom through as a squid, or stay still to be hidden. You can also use this to move up walls.
Each arena has multiple routes, and your spawn point is protected, you can also perform a superjump to an ally (which is telegraphed so is dangerous to jump to someone near enemies), so you never feel cornered, just find another route and start covering the arena from there.
There’s also a singleplayer mode which, while simple, is still good fun and has some cool uses of ink that weren’t seen in multiplayer until free levels came out later on.