No. The Fitgirl repack already includes the crack (usually based on the PLAZA or CODEX release). Just install and play.
Compression is heavy, so installation can range from 15 minutes to over an hour depending on your CPU and RAM speed. Mortal Kombat XL-PLAZA Fitgirl Repack
Because scene cracks modify game executables ( .exe or .dll files) to bypass DRM, Windows Defender and third-party antivirus software frequently flags them as "HackTool" or "Trojan." While many are false positives, you must rely on trusted sources to guarantee safety. Mortal Kombat XL-PLAZA Fitgirl Repack