Since these are 2D sprite-based games, they compress beautifully. The "HOT" Catch: Is It Worth It?
High-ratio compression tools can squeeze data significantly, though they require immense CPU power and time to "decompress" back into a playable ISO. Top PS2 Games That Can Actually Fit Under 100MB --- Highly Compressed Ps2 Iso Under 100mb -HOT
to under 100MB is generally impossible without "ripping" (removing) essential data like cutscenes and audio. Technical Realities of High Compression Data Stripping (Ripping): Since these are 2D sprite-based games, they compress