Mega Man X4, known as Rockman X4 in Japan, is the fourth game from the Mega Man X series. It was the second game in the series to be released on the Sega Saturn and Sony PlayStation (although it is the first original game; Mega Man X3 was ported to the systems), released in 1997 (and also re-released onto PlayStation as part of its greatest hits in 2002). It was later ported to the PC in 1998 and then re-released as part of the Mega Man X Collection