If you're keen try out Sonic Forces before the big release on November 7, then you're in luck, because Sega has just released a demo on Nintendo Switch, but there are some bizarre restrictions in place that don't exactly inspire confidence.
First off, the demo is only available on the Japanese version of the eShop, but it's pretty straightforward to simply create an account and select Japan as your region.
Secondly, while three separate levels are available in the demo, you're limited to just one minute sessions, rendering getting a proper impression of the game pretty difficult.
Are you expecting to purchase Sonic Forces next month?