The Nintendo⁶⁴ site IGN64 and the PlayStation site PSMOnline, members of the Imagine Games Network, have posted great reviews of their respective versions of Mortal Kombat 4. In PSMOnline's review of the PSX version, lead editor Douglass Perry gives it a score of 8. In IGN64's review of the N64 version, Peer Schneider also gives it a score of 8, while Matt Casamassina gives it a 9. Here's an excerpt from the N64 review:

Overall Highly recommended purchase, especially considering the title's low price-tag of only $49. With beautiful graphics, tight control and excellent sound, the only thing keeping this title from a perfect score is its aged fighting system. The closest thing to a perfect arcade port we've seen in a long, long while. Hats off to Eurocom for the job. Best Nintendo 64 fighter so far. --Matt Casamassina, IGN Editor