The "Unified SSB" PS5/PS4/PC demo version will allow you to play some of the Gunyu Split Scenarios! PS5/PC version also supports transfer to the full version

The "Unified SSB" PS5/PS4/PC demo version will allow you to play some of the Gunyu Split Scenarios! PS5/PC version also supports transfer to the full version
The system software beta has started distributing an updater for the demo version of "Tenkaunification SSB" available on PS5/PS4/PC (Steam, Windows 11/10/8.1) from today, April 16th....

The linked article is in Japanese.