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Johnny V is a color-changing carnivore available for 50,000 shells in The Fish Emporium for a player's Virtual Tank. Johnny eats pizza, despite being described as trying to stop eating fast food, resulting in Johnny sometimes swearing that it was its last pizza.
The frequency at which Johnny exclaims, "This is my last pizza, I swear!" appears to be random with no particular amount of feedings or lapsed amount of time contributing to how often he says it. It is only certain that there is a chance for him to say it after eating a pizza.
- He is the only carnivore (and fish) to talk.
- He is the only Rainbow fish to have a name in the Fish Emporium.
- Johnny V's name is a reference to the game's lead composer, Jonne Valtonen.