Flintstones/Jetsons Musou.

Fred, Wilma, Barney, Betty, Baby Pebbles & Bam Bam, George, Jane, Rosie, Dino, Astro, vs. Slate, Spacely, Cogswell, and The Great Gazoo.

Chaff are the Water Buffalos, Definitely Not Copies of the Joe & Mac cavemen, and a bunch of robitts.