The Bebop is forced to land in an area called "Western World." This is a
reference (I think) to an odd sci-fi western ("West World") staring Yul Brynner.
This episode is a major tribute/parody of Blaxploitaion films, in everything
from the music to the clothes to the character designs.
The female bounty hunter featured in this episode looks like Pam Grier,
a star of Blaxploitaion cinema; also, the character's name is "Coffee" which
can only be a reference to Pam Grier's 1973 film "Coffy"
The song "You Make Me Cool" which is played during this episode is a tribute
to the Harry Connick Jr. song, "Red Light, Blue Light."
The male bounty hunter featured calls himself "The youngest Shaft brother!"
The "Shaft" character drags a coffin around with him; I know this is a reference
to a Clint Eastwood spaghetti western, but for the life of me I can't remember
which one. There's also a possibility that the coffin-dragging bit is a double
reference; According to Steve Harrison,
it might be a reference to the film "Django" in which the main character drags
a machine gun around with which to dispatch his enemies.
During Spike's hallucination, the frog says "Don't you know this is the
Stairway to Heaven?", a reference to Led Zeppelin's song of the same name.
If you notice any references that I missed, I would appreciate
it if you e-mail me.