Just like in the print ad campaign, this ad shows us how a sneaky drop of the umlaut dots allows Australians in Manly to make Kolsch beer. See, only beer from the Kölsch area in Germany can call it Kölsch beer. And clearly when you drop the dots, you have an totally different word.
Mocking old newsreels, they found a kangaroo beating up one man in footage archives somewhere. What a gem.