Sites like CDRomance (specializes in compressed PS2 ISOs) and certain Reddit communities (r/Roms) maintain lists of compressed CHD or CSO files. Look for a .chd file (CompactCHD) – this format is lossless and usually reduces the 3.9 GB ISO to about 1.2 GB , not "highly compressed" but stable.
Due to the game's age and lack of modern re-release (it is not on Steam or PS Store as of 2026), the game is often listed on the Internet Archive . Search for "Shaolin Monks (USA) PS2" on Archive.org. They do not provide "highly compressed" versions directly, but you can download the full ISO and compress it yourself. mortal kombat shaolin monks ps2 iso highly compressed
Do not trust anonymous "ZIP" files on YouTube descriptions. Instead, grab the full ISO from a reliable archive (Archive.org), compress it to CSO yourself using Level 9 compression, and enjoy the carnage on PCSX2. Remember to support the franchise by buying Mortal Kombat 1 (2023)—but keep Shaolin Monks alive on your hard drive forever. Have you successfully found a working highly compressed ISO? Share your SHA-1 hash in the comments below (for verification, not piracy). Sites like CDRomance (specializes in compressed PS2 ISOs)