You will be able to explore this demo on your PC like a developer from the 90s.
Other demos are also present. They are not optimized. You can get an idea.

We can thank Sifting for making the wrapper and sharing it with the community. What he has done is incredible, a big step in the preservation of Sega's latest console.
The project started in July. We are finally ready to offer you a first release. There will be updates.
You can find more information like the explanation to launch the demos, videos and the links to download the tools needed for them by reading this article :
https://en.sega-dreamcast-info-games-pr ... ui-wrapper