One advantage of using a compressed ISO on an emulator is that you can patch it with mods. The Tenkaichi 3 modding community is massive.

Even in compressed versions, you typically get the core "definitive" experience:

Expected Trade-offs (140 words)

A "Highly Compressed" ISO is not a different game; it is a standard PS2 ISO that has been repackaged using advanced compression algorithms (like or GZip ) via tools like PCSX2’s built-in compression or Maximum Compressor .

Legal & Ethical Reminder (brief)