A Rookie Digimon with soft skin for living underwater. It swims along the currents of digital lakes and rivers, and climbs up rocks with its developed forefeet to do some vocal training. Its undeveloped back legs act as a rudder in place of its tail, which it uses for propulsion. This is a valuable Digimon among the Rookies, with obvious potential for Digivolution. Even so, the risk of mutation is quite high, so care is necessary when raising it. Its special move Lullaby Bubble invites endless sleep upon its foes.