There are two versions of this film in release. One is the theatrical version shown during its initial release, the other is a heavily edited version aired on several cable networks. The edited version adds in some cut scenes - such as the neighbor being revealed to be a transvestite, and extended footage on the alien spacecraft - but also has some of the more drug-related scenes cut or altered. Most notably altered is the contents of Red's duffel bag, which in the TV version contains not hundreds of thai sticks, but diamonds.
The original theatrical release & early home video editions have Cheech singing the song "Ya-Ya" in the scene where he is ironing his clothes for his date. Newer releases have this audio removed and different audio in its place.