Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This movie is four interconnected stories set in Oakland, California in 1987. In chapter 4, The Legend of Sleepy Floyd, a gang of Nazi skinheads and bikers rob the house of an Oakland NBA Warriors basketball star named Sleepy Floyd (Jay Ellis) when he is playing. When Floyd's girlfriend unexpectedly comes home early, they kill her. When Floyd learns who killed her, he arms himself with all sorts of martial arts weapons and a Samurai sword and goes to their house for revenge. He starts killing everyone he finds, room by room.
In a dark room dimly lit by UV light, he finds several people, including a biker (credited as "Beheaded Biker" played by Michael X. Sommers). They're standing over a terrarium with a pet python inside. The biker puts a live mouse in the cage for the snake to eat as the others watch. Floyd sneaks up behind them. The men turn around and the biker admires Floyd's Samurai sword, telling him that if his girlfriend had only stayed at the game, the sword would be his and the woman would still be with Floyd. Then the snake opens its mouth towards the mouse and hisses loudly, as Floyd chops off the biker's head. We hear a thud as the biker's head falls into the snake terrarium, giving us an explanation of his name in the credits. But I had to wonder, where did the snake go?
The snake is hard to see, but it appears to be a Ball Python.