In a later set of reviews from the same publication following the game's release, reviewer K. Lee praised the mix of bitmapped graphics and SGI renders used for the sprites. The other 2 "Gamefan" reviewers, Nick Rox and "Skid", expressed awe at the game's ability to extensively use parallax scrolling in spite of the 3DO's limited hardware. Gameplay was deemed unique by many critics, who praised its integration of Gex's abilities as a gecko. Lee called "Gex"s gameplay mechanics "the icing on the cake" as well as praising the inclusion of game secrets. Gilde aimed particular praise towards Gex's ability to climb surfaces, saying that players could "get into the groove" of using the skill despite stating that it was initially frustrating trying to guess which walls were and were not climbable. A reviewer for "Next Generation" contested that Gex's wall climbing ability was "not completely unique" but that it nonetheless added an interesting dimension to the gameplay. Storm advised that the game controlled the best when playing using the 3DO's Goldstar controller. Gould's in-game voiceover for Gex was highly praised. Gilde stated that it never became obnoxious due to the wide range of different one-liners present in-game. Storm called Gex's voice "the first time a game character has ever been given voice and personality that has actually turned out to be cool" and stated that the many written phrases suited his character. Skid felt that the vocals added to the game's enjoyability, while Rox wrote that they were mostly "hilarious... when you can hear them over the music and sound effects." In reviewing the PC version for PC Powerplay, David Wildgoose wrote that Gex's "American slacker voice" would be viewed by players as either "cool or grating", although he admitted to personally not minding it. Lee praised the game's music, calling it "high quality." The game's ports received varying levels of praise. The four reviewers of "Electronic Gaming Monthly" reviewed the PlayStation and Saturn versions, commenting that the audio and cinemas in both versions were cleaned up compared to the 3DO original. They especially praised the game's humor and solid platforming action. Tommy Glide likewise stated in "GamePro" that the PlayStation version had "cleaner graphics and smoother gameplay" than the 3DO version. He also remarked the Saturn version has "the same graphics, sound, and control that earned acclaim in the PlayStation version", and held it favorably above "Bug!", another platform game for the Sega Saturn.