Assuming you have obtained a ROM of Street Fighter X Tekken for PS Vita safely and legitimately, you can follow these steps to play the game:
Ultimate Guide to Street Fighter X Tekken on PS Vita: ROMs, Emulation, and Gameplay
Assuming you have obtained a ROM of Street Fighter X Tekken for PS Vita safely and legitimately, you can follow these steps to play the game:
Ultimate Guide to Street Fighter X Tekken on PS Vita: ROMs, Emulation, and Gameplay