The Squid Sisters is one of the Unlockable Characters for Super Smash Bros. Ragnarok. The hosts of the Inkopolis News Program, the Squid Sisters, Callie & Marie are the grandaughters of the War Hero Cap'n Cuttlefish. The duo also host the Splatfest an event to get the Inklings riled up over certain topics, of the two Callie seems to be the more excited of the two although in contrast Marie seems to be able to keep a level head more often. They also appear to somehow be involved with their Grandfather's interests in Octo Valley as they occasionally are sighted disappearing to the valley.
A new feature in Super Smash Bros. Ragnarok, pairing has a secret ability in which if both characters perform Final Smashes together. Every Character has a partner that gives both Final Smashes a 5% Damage Boost when performing a Paired Smash.