So, after reading a comment, I realized that the build I posted was being automatically uptaded with every modification I did to the game project in Clickteam Fusion.

This means that you could access to an unfinished demo, which wasn't the idea at all, so I removed the Tails' demo to prevent the content of the demo to keep being leaked as I keep working.

So you won't be able to download the game until Knuckles' demo is totally finished and ready to be published.

I'm really sorry for the inconvinient, I'll make sure it doesn't happen again.

See you soon!