'Girls! Girls! Crazy girls!' goes the infernally catchy theme song. Well, crazy they ain't, and, if local legend is to be believed, the butts displayed in bronze outside the Riviera by way of advertisement aren't all female. Regardless, this low-budget titfest, which celebrated its 20th birthday in September 2007, is a giggle: about as arousing as a kick in the teeth, granted, but lovers of Vegas camp will be in heaven.