Goby
A Goby is a Cheep-Cheep, which curiously they share the same Japanese name, Pukupuku. Regardless, the Gobies live underwater in Kero Sewers. They roam the waterways, battling intruders who invade their territory. In battle, a Goby will lower its head and ram into its enemy. Gobies have no special attacks and they are weak against lightning-based magic attacks.
Unfortunately for Gobies, the water of Kero Sewers can be drained, which is exactly what happened during the events of Super Mario RPG: Legend of the Seven Stars. Without water, Gobies flop around erratically on the dry ground. However, when engaged by an attacker, Gobies will use their fins as wings, allowing them to fly for short periods of time. While flying, Gobies attack in the same way as they do when swimming.