I figured just putting Tavi and Scratchy into the tub wasn't enough. So then I thought "Hey! Let's dress them up as Master Chief and Samus Aran!"
Also a related YouTube video named "Haloid" by Monty Oum where Master Chief and Samus face off. He produced this by himself over 5 years ago, which landed him a job at RoosterTeeth: [link]
Yeah, yeah, I know Chief's a guy, but this is during the era of Halo 2 where there was a small possibility that S117 was a chick. It was never clarified.