The yellow and purple Inkling puppet fighters each represent the yellow-haired Frye and the blue-haired Shiver, who make up two of the members of the pop idol group, Deep Cut.
The Kyogre Poké Ball Pokémon references Big Man, a large blue-and-white manta ray who serves as the third member of the pop idol group, Deep Cut.
The Squid Sisters Assist Trophy enemy references how Deep Cut replaces the Squid Sisters' roles as the pop musical group and hosts of Splatoon 3.
Other trivia:
This spirit's Water Attack ↑ ability references the usage of ink to attack in the Splatoon series.
