While these games were originally larger, "highly compressed" versions (often stripped of background music or cutscenes) are frequently available around the 100MB threshold: Metal Gear Solid: Peace Walker
Do not download "EXE" files or "Installers" from random sites. Stick to trusted ROM repositories that offer pre-converted .CSO files for PPSSPP. highly compressed psp games under 100mb best
Visually striking, incredibly clever, and perfectly suited for the tiny file size. Jetpack Joyride God of War: Chains of Olympus While these games were originally larger