Vimm’s Lair is the gold standard for retro safety. Their "Lair" format is compressed. Note that they often remove files due to DMCA, so availability fluctuates.
Warning Signs:
You need 7-Zip (free) or WinRAR.
The biggest risk in searching for "Bully PS2 ISO Highly Compressed" is stumbling into fake download buttons and .EXE files. Never run an .exe file claiming to be a PS2 ISO. Bully Ps2 Iso Highly Compressed
Here are three trusted sources within the emulation community (as of 2025): Vimm’s Lair is the gold standard for retro safety