Here is an overview of the demo, via Capcom:
Bash baddies with the new Devil Breaker “Punch Line,” and take a look inside Nico’s shop! You can even save your game, giving you a chance to play through as many times as you need to fill out Nero’s move list.
The first demo, released on December 7, 2018, was exclusive to Xbox One. As of today, it will no longer be available for download, but it will still be playable if you have it on your system.
Devil May Cry 5 is due out for PlayStation 4, Xbox One, and PC on March 8.