"Couch coop" refers to playing video games with friends or family on the same couch or in the same room, usually on the same television, rather than playing online or remotely. Full definition
Before you think that you may need to purchase some more expensive joy - con controllers, there is good news, you will only need one console to run the game, and a smartphone or computer for every additional player in couch coop mode. (mypotatogames.com)
Playing couch CoOp with friends is where this game shines. (levelsmack.com)
This game is awesome... Was waiting for this to play couch coop with my son since this game launched. (blog.us.playstation.com)