Golden Cheep-Cheep

Golden Cheep-Cheep(also called Cheep-Cheep School) are a subspecies of Cheep Cheeps that first appeared in New Super Mario Bros. Wii. They are gold and small, always swim in groups, and are an obstacle to players.

New Super Mario Bros. Wii
Golden Cheep-Cheeps first appear in World 1-4 in New Super Mario Bros. Wii. Only several can be seen throughout. They can be defeated with Fire Flowers and Ice Flowers.

New Super Mario Bros. 2
In New Super Mario Bros. 2, when Mario touches a Gold Ring, the Cheep Cheep becomes a Golden Cheep-Cheep. If defeated, five coins appear.

New Super Mario Bros. U
Golden Cheep-Cheeps reappear in New Super Mario Bros. U. Once again, they swim in groups, and they are difficult to dodge.

Trivia

 * these cheep cheeps originally going to appear in Super Mario Bros. 3, but was removed for unknown reasons.