This video was created by Brent Forrest who's the owner of BFX Animation in Tokyo. "Dirty Pool" is a homage to a billiard hall in Toronto where animators would hang out and carouse. He created the room from memory and used a rig downloaded from AnimSchool for the characters. Original music by Roberto Ignis. Brent's 2016 demo reel follows the video.
Here's a valuable insight as to how Pixar develops their characters. A lesson that can benefit creative individuals everywhere. Courtesy of StudioBinder which is a leading software for video, photo, TV and film production management.