None.

This cartoon only has some instances of slapstick content. The 1992-93 cartoon show by the same title is literally more intense in terms of cartoon violence than this.

Only a few instances of call names like "dumbdumb" and some similar words. Nothing bad.

Only a few scenes of someone with a cigar in the mouth.

The ghoulish and horror theme of this cartoon show is so mild it's practically nothing compared to the cartoon show from 1992-93.