The Green Slime (Japanese: ガンマー第3号 宇宙大作戦, Hepburn: Ganmā Daisan Gō: Uchū Daisakusen, lit.

'Gamma 3: The Great Space War') is a 1968 tokusatsu science fiction film directed by Kinji Fukasaku[1] and produced by Walter Manley and Ivan Reiner.

When the senior officers arrive to investigate, they find the crew member electrocuted to death and a strange one-eyed tentacled creature that discharges lethal amounts of electricity.

Rankin manages to set up the crash landing and escapes with Elliott's body onto the shuttle as the station burns up and destroys all of the green slime creatures.

[3] Years before The Green Slime went into production, MGM had contracted Italian filmmaker Antonio Margheriti to direct what was intended to be a series of four television movies about the adventures of a space station called Gamma One.

[3] The US theatrical release includes a subplot involving Dr. Lisa Benson as a shared love interest between Rankin (a former flame) and Vince (her current fiance).

[2] Aside from Horton, Jaeckel and Paluzzi, the rest of the cast consisted of amateur and semi-professional Western actors living in Japan at the time.

[10] Variety referred to the film as "a poor man's version of 2001", and described the story, script and special effects as "amateurish".

[5] The New York Times stated that the film "opens promisingly, keeps it up for about half an hour but then fades badly [...] the picture falls to pieces when the green menace becomes an army of rubbery-looking goblins".

[11] In a retrospective review, Stuart Galbraith IV discussed the film in his book Japanese Science Fiction, Fantasy and Horror Films, finding that Fukasaku's direction was "flat and uninteresting" and that the special effects by ex-Toho employees Yukio Manoda and Akira Watanabe were worse than their previous work with Eiji Tsuburaya, noting that the "miniatures are badly lit and lacking in detail".

[12][13] In Phil Hardy's book Science Fiction (1984), the film was described as "not a very convincing entry in the vegetable monster movie subgenre".

[16][17] The episode differed from others as it lacked the character Tom Servo, instead featuring a puppet named Beeper who only spoke in beeps that Crow T. Robot could understand.