The only way to play Ultimate Tenkaichi on a modern computer is through console emulation using software that can run the original game files.
There is no official PC version of Dragon Ball Z: Ultimate Tenkaichi . The game was released exclusively for the PlayStation 3 in late 2011.
Most legitimate ways to play on PC involve using emulators like RPCS3 (for PS3) or Xenia (for Xbox 360) to run the original console files.