However, the method you choose matters. While downloading a 200 MB file from a random website is tempting, the legal and security risks are significant.
The PlayStation Portable (PSP) hosted two of the most technically impressive entries in the God of War franchise: God of War: Chains of Olympus (2008) and God of War: Ghost of Sparta (2010). Because God of War 1 was originally released for the PlayStation 2, mobile and PSP gamers look to Chains of Olympus as the definitive "God of War 1 PSP" experience. It serves as a direct prequel to the original PS2 game, detailing Kratos's ten years of service to the Olympus gods.
If your ultimate goal is to play the true God of War 1 from 2005 on a mobile device or a computer, you must look to PS2 or PS3 emulation rather than PSP emulation. PS2 Emulation (AetherSX2 / PCSX2)
And in the dark, someone new pressed Start.
This is where "highly compressed" comes in. It refers to the process of reducing this bulky ISO file into a much smaller package, often by using the format. CSO is a file format specifically designed to shrink PSP game images for storage on memory sticks. For Chains of Olympus , a highly compressed CSO file can be reduced to a size of 200-300 MB , or even as low as 114 MB with certain methods.