The main demo features Sonic in Green Hill Zone. The Tails Demo is a separate, smaller campaign focusing on stealth.
"Sonic.exe: One Last Round" is a fan-made game created by the same developer behind the original Sonic.exe series. The game promises to deliver a thrilling experience, exploring the darkest corners of the Sonic universe. The story revolves around Sonic and his friends as they face a new, powerful enemy. sonic.exe one last round tails demo download
Approximately 64 MB to 79 MB depending on the archive version. The main demo features Sonic in Green Hill Zone