It used to be so easy to buy video games. But just try wrapping your head around how Tecmo explains the various ways to buy the upcoming Dead or Alive 5 Last Round: Core Fighters:
Players wanting a taste of what DEAD OR ALIVE 5 Last Round has to offer can play the main game content in DEAD OR ALIVE 5 Last Round: CORE FIGHTERS free of charge. PlayStation 4 players will have access to the free-to-download version via the PlayStation® Network which includes four fighters - Ayane, Hayate, Kasumi and Ryu Hayabusa - and almost every game mode will be available. Xbox One players will have access to a free trial version of Last Round via the Xbox Games Store consisting of the same free-to-download fighters and features as noted above, but is not expandable via additional purchases. Xbox One users wanting an extended experience can purchase DEAD OR ALIVE 5 Last Round: CORE FIGHTERS at a launch discount price for the first two weeks after the games release. The purchased Xbox One version of Core Fighters includes all of the contents as the free trial, but adds four more fighters to the mix in Hitomi, Tina, Jann Lee and Bass, and is expandable from there via additional purchases.
That's a very long way of saying a demo version of the game's being offered on Xbox One.
Video games, man. Video games.