Shower Showdown was a video James uploaded to Machinima in 2010. The video was made private after James left Machinima, and was presumed lost, until is was reuploaded in 2017.
The video features a boy named Garthardos (played by Nova). Garthardos is a shy little brother (probably 10 or 11 years old) that hides in his bathroom so his parents can't hear him commentate. In his video, his brother and some other family (portrayed by Sp00n and Nova) go into the shower and have a "party", which annoys him. Garthardos ends up raging and ending the commentary.