Playable on PlayStation 2 hardware and PC via the PCSX2 emulator .
If you were actually referring to a "Dragon Ball Z Budokai Tenkaichi 4 Version HQ" (like a PSP or Android port), let me know and I can refine the guide. Otherwise, the above covers the most common fan-made PC/emulator version. Dragon Ball Z Budokai Tenkaichi 4 Version HQ -B...
The HQ version typically includes: