Data from a music player fused with the legendary 'Kappa' to form this Cyborg type Digimon. He always listens to his favorite music with his seaweed-like headphones, but when the CD disc on his head gets damaged, he sheds tears. His special attacks are "DJ Shooter", where he spins the CD disc on his head at high speed that damages the enemy he launches the disc at, and "Gawap Punch", where he uses his stretchy arms to issue forth a mighty blow. Enemies are unexpectedly tossed about when they get caught in his mysterious "Gawappa Rapper" dance attack.
A Kappa's head has a circle filled with water that keeps it alive out of water. Gwappamon's head does not contain water, but instead acts as a CD player.