Complex sentence: Frylock tries to be a good father figure to Meatwad, but Shake often tortures and pranks Meatwad, although in many episodes, Meatwad manipulates Shake into causing harm to himself and others.
Split into simpler sentences: Frylock tries to be a good father figure to Meatwad, but Shake often tortures and pranks Meatwad. Though in many episodes he manipulates Shake into causing harm to himself and others.