Common Sense Note
Parents need to know that this series is filled with standard cartoon violence like extensive falls, collisions, and fistfights. Occasionally, there's also unrealistic use of firepower; in one scene, a cannon fires children instead of cannonballs (the kids emerge unscathed). Flapjack's adoration of Captain K'Nuckles is disturbing since the captain is selfish, dishonest, and unkind and routinely encourages Flapjack to ignore Bubbie's motherly advice. The series does attempt to convey positive messages about good social behavior, but the lessons are typically overshadowed by the rest of the content and the show's chaotic pace.
Standard cartoon violence -- extensive falls, collisions, and hand-to-hand battles -- none of which results in injury. Firepower includes guns (they're fired to signal the start of a race and aren't aimed at anyone) and cannons, which in at least one scene are used to fire kids at an opponent.
No cursing, but words like "stupid" are used infrequently.
Attempts at promoting positive messages related to social behavior ("It's not nice to brag," for instance) come across as an afterthought amid the cartoon chaos. Body humor (mostly gas) is a common source of humor. The show sometimes makes light of sensitive content; in one segment, for example, young kids are forced to labor in the belly of a mechanical whale before being shot out of a cannon.
Drugs / Tobacco /
Characters drink candy out of beer mugs.