Another example of YouTube proving long-term childhood memories are correct: a Levi's ad that stuck in my head for years featuring a slightly creepy alien warrior who uttered "LE-VI-ZUH!" a lot and chuckled at the end of the commercial. I'm not surprised that I don't remember the wussy human.
The warrior made at least one other appearance, shown above. The jean-makers animated ads from the late 70s/early 80s are stunning in their design, rotoscoping (basing the animation on human models) and overall quirkiness (A farmer who shows great pride in his denim crop? How would jeans have fit humans if we had physically evolved in different ways?). - JB