Sea Neons are Emblem Heartless that appear in Kingdom Hearts. They resemble jellyfish, having a black head with beady yellow eyes contained within a gelatinous sac emblazoned with a Heartless emblem, sporting four small tentacles for swimming and two large ones for attacking.
As aquatic creatures, Sea Neons only appear in Atlantica. They are frequently encountered in groups, often alongside a Sheltering Zone. They attack by flailing their tentacles and by spinning around. Though they can cause moderate damage with repeated hits, they have low defence and can be defeated with relative ease.