Features a massive roster and the "Konquest" adventure mode.

If you still choose to download ROMs/ISOs (legality varies by country), avoid these red flags:

Mortal Kombat 11 (MK11) never officially released for the PlayStation Portable (PSP)

While you may find "highly compressed" ISO files online claiming to be Mortal Kombat 11 for PPSSPP, these are typically based on older games or potentially malicious files. Authentic Alternatives for PPSSPP