Because you are dealing with a PKG (which is essentially a zip file), advanced users can actually extract the PKG using tools like pkgview to mod the game.
A: No. Sega has released Virtua Tennis on PS Vita and mobile, but the PS3 version remains the definitive home console release. You can, however, play the PS3 PKG on a backwards compatible PS3 (CECH-A/B/C/E models) — but that's redundant since all PS3s play PKGs. Virtua Tennis 4 Ps3 Pkg -
If the game asks for a license or shows as “trial”: Because you are dealing with a PKG (which