The show isn't too violent. There are punches, kicks, bumps, and some crashes but not really anything too serious. Characters don't get injured.

Jonah Jameson likes to call Spider man rude things like "The Menace to Society", "Web Headed Weasel", "Fraud", "The worst menace this city has ever known" and "Thief".

Jonah Jameson smokes.

Some of the villains can be sort of scary for younger viewers.

Seasons 2 & 3 are darker than Season 1.