None.

The series features frequent clashes between the heroic main characters and their enemies, involving demolition derby style vehicle clashes. Rarely is any encounter depicted as causing any serious or permanent harm, and no equivalents to blood are depicted.

The character of Garby eats rocks, and the effects of this process are frequently likened to realworld digestion for "comedic" effect: he produces compacted bricks of rock from underneath his tail and releases noxious green clouds in a matter similar to flatulence; he also comments in various episodes about how certain substances affect his "digestion." The character is technically a machine.

None.

Intense peril in every episode.

Several of the villainous characters are shown to delight in causing harm to others, though rarely do they actually succeed.