The Seahorse, like its name suggests, resembles a real-life seahorse, with a long snout and a tail that's curled forward. It has a pair of spiny fins extending from its sides, and its head is decorated with a ridge of similar spines. The Seahorse is primarily turquoise, which fades to white at the tip of its snout and spines, and it has a white belly. The back of its tail and the ends of its spines are decorated with a bubblegum-pink colour.
The Seahorse is capable of using both the basic Attack move and the Bubble Fountain move. It lunges forward and jabs its target with its snout to deal physical damage, and it raises its fins to cast bubbles at them.
- The spikes on the Seahorse's body and their color maybe a reference to the fact that seahorse camouflage in coral reefs by taking the color of the corals.