The evolution of the PSP through its various models—from the original PSP-1000 "Phat" to the PSP-3000 —was mirrored by the evolution of its software exploits. As Sony patched security vulnerabilities, the community found new "Pandora's Batteries" and "Hello World" exploits to maintain access. This cat-and-mouse game eventually led to a robust ecosystem where the PSP could emulate dozens of older consoles, play high-fidelity video, and run community-made applications that Sony had never envisioned.
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