(EN) Konstantinos Dimopoulos, Rex, su retrogamer.net, 7 agosto 2008.
«"In Rex, a very Metroid-esque platform-shooter sort of a game, players ... set off to rid his (their?) home-planet from a huge polluting factory-tower-fortress thing. Actually, make that a huge, cavernous, impressively non-linear factory-tower-fortress thing and you'll have managed a way more accurate description."»