You must have Game Pass and own an Xbox One or Series S/X.
This is a glitch and may end any time.
- Install DRAGON BALL FighterZ for Xbox One even if you have an Xbox Series.
- Launch the game and choose the upgrade for Xbox Series XIS.
- Quit the game, restart your console, consult your "Owned Games" library where you will see the 2 versions.
Credit to Dealabs.
It’s not a glitch, it’s Free Play Days.
https://news.xbox.com/en-us/2025/02/27/free-play-days-02-27-…