What is the name of Shiver's megalodon shark in her Splatoon 3 battle?

Shiver rides a megalodon shark called Master Mega during her Splatoon 3 battle.

The encounter takes place in Return of the Mammalians, Splatoon 3’s single-player campaign. Shiver is the second Deep Cut member fought by the player, and she attacks while mounted on Master Mega rather than battling entirely on foot. The shark circles the arena, launches attacks, and charges into the arena, creating the central mechanic of the fight.

Master Mega is closely associated with Shiver’s character. She presents herself as a shark handler and uses the animal as both a battle partner and a dramatic entrance. The name is easy to confuse with Splatoon’s other bosses and villains, including DJ Octavio and Mr. Grizz, but those characters do not accompany Shiver in her boss encounter.

Later in the campaign, Shiver lends Master Mega to Agent 3. The shark helps propel the hero toward Mr. Grizz’s rocket during the finale, turning the former boss companion into part of Deep Cut’s rescue effort.