Reception and legacy
Reviews for the PlayStation and Saturn versions of Mega Man X4 have been generally positive. Critics praised the added option to play through the game as either X or Zero, noting that the drastic differences in the way the characters played the same levels added to the game's replay value.[36][37][3][40][41][46] However, most of the same critics concurred that Mega Man X4's 2D side-scrolling gameplay was tired and overdone well before the game was released.[36][37][3][40][41][42] In particular, GamePro and Next Generation both gave it mixed reviews on the sole basis of its perceived lack of series innovation; GamePro asserted that "the gameplay's none removed from Mega Man for the NES - things are just a little bigger and a little louder,"[48] while Next Generation suggested that those interested in the game should instead "pick up Mega Man X3 in the used bin for a third of the price, since you won't miss much."[42] However, a different GamePro critic reviewed the PlayStation version and gave it a resoundingly positive review, calling it "an impressive 32-bit debut" and "a definite must-have for any action gamer's library."[49] GameSpot took more of a middle ground, concluding that "All in all, a few more 3D effects would have been nice, but the decision to stick with a true 2D environment is bold, if somewhat outmoded. Aesthetically, Mega Man X4 is a sizeable improvement over its predecessors, but you must remember that it's only a side scroller."[40]
A number of critics also praised the intuitive and responsive controls,[36][37][3][40][41][49] gigantic bosses,[3][40][46][49]
The Windows version of the game was met with much lower review scores.[35][47] Tom Price of Computer Gaming World felt appeal of the game itself is limited to Mega Man and platformer fans, who likely already own at least one of the console versions of Mega Man X4.[35] Computer Games Magazine found it superior to Mega Man X3 but without any sense of the sequel having noticeable improvements.[47]
When it came to the story, IGN and GameSpot praised how different was X's story from Zero's as it gave the game replay value.[41][3] Reactions to X's voice-acting have been mostly negative. Sushi-X of Electronic Gaming Monthly and Hilliard criticized his child-like voice as a poor fit for his character.[37][52] Critics said the scene in which Zero yells "What am I fighting for?!" while holding Iris' dead body is some of the worst voice acting in the Mega Man franchise.[53]
According to Famitsu sales information, the PlayStation version of the game sold 197,385 copies in Japan alone in 1997, making it the 61st best-selling game in the region for that year.[54] In 2002, Capcom re-released the PlayStation version of the game as part of the North American Greatest Hits range, confirming that it had sold at least 350,000 units.[55] Mega Man X4 has also been re-released in multiple budget versions in Japan including PlayStation the Best, PSone Books, and Sega Saturn Collection.[56][57][58]
Despite the derision for retaining the same gameplay formula that the Mega Man franchise had been using for a decade, Capcom continued to use 2D side-scrolling for another two installments of the series, Mega Man X5 and Mega Man X6. These three games, as well as the three installments that precede them, were included on the North American Mega Man X Collection for the GameCube and PlayStation 2 in 2006.[59] A mobile edition of Mega Man X4 for au and DoCoMo customers was made available for purchase in Japan. A version featuring X as a playable character was released in 2011; a version with Zero in 2012.[34] Mega Man X4 was also released on the PlayStation Network for PlayStation 3, PlayStation Vita, and PlayStation Portable as part of the PSOne Classics line in 2014.[60] Finally, Mega Man X4 was included in the Mega Man X Legacy Collection