In a 2007 retrospective, producer Wallis said that "X-treme" "definitely would have been competitive" with Nintendo's "Super Mario 64." Senn believed that a version of "X-treme" built by him with Alon's engine could have sold well. "Next Generation" said that "X-treme" would have damaged Sega's reputation if it did not compare well to competition such as "Super Mario 64" and "Crash Bandicoot". Naka was dissatisfied with the game, and in 2012 recalled feeling relief when he learned of its cancellation. Journalists noted similarities in level themes and mechanics between "X-treme" and the 2013 game "Sonic Lost World", although Sonic Team head Iizuka said the resemblance was coincidental.