It has had two sequels called Metroid Prime 2 : Echoes and Metroid Prime 3 : Corruption , a side game called Metroid Prime Hunters , and a spin-off called Metroid Prime Pinball . It takes place after Metroid , but before Metroid II : Return of Samus . In North America , it was also the first Metroid installment to be released since Super Metroid in 1994 ; in all other markets , it was released after Metroid Fusion .