The game will match them with other former Splatoon 2 players with a similar skill level.
The game will save the Story Mode progression data internally in the console, although players can also upload it to the Nintendo Switch Online’s cloud backup.
People who have played Splatoon 2 will receive many bonuses in Splatoon 3 when they carry over their save data to the new game.
Nintendo made the announcement with a new post on the game’s official website shortly after holding the Splatoon 3 Direct presentation stream.