Oysterio is a regular character in the game, Swimmy Sea, that was released on Version 1.0.
Oysterio keeps the beat in flow with his built in stereo system. Don't get too caught up in his beats- you've still got to watch out for those dangerous enemies.
Oysterio looks like an oyster with audio earphones. It has a whole stereo system with the sound beats on a visual screen.
- His beats can disturb the player from the dangerous enemies crossing your path which makes it harder to play with him than another regular character.