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Antichthon before its mutation.

Antichthon was a planet in the Gradian Star System. It used to be the protectorate of the Gradian Empire until 6644, when the Bacterians infected Antichthon's mother computer and turned it into a brain with three eyes. Vic Viper then destroyed the infected mother computer, destroying Antichthon in the process.


  • In the SNES ending of Gradius III, and the beginning of the fourth level of Gradius V, a green planet appears. This could either be a rebuilt Antichthon or another green planet.
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