How to Install Adrenaline on PS Vita & PSTV | Full PSP Emulator on Vita! - YouTube
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PS Vita: Adrenaline (PSP Emulator custom firmware) updated to version 6.6, improves performance and fixes crashes - Wololo.net
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A look at the bounty for native resolution PSP emulation on the PSVita through its built-in PSP hardware - ColdBird says it's possible to do and not just a pipe dream! -
Emulador PSP en PSVita (Y PS1 PSX) - Tutorial Adrenaline + Game Categories Lite + Bubble Manager - YouTube