In the screen where i have to type "y" or "n" to select the correct application, it asks me if "sonic2app.exe is the right application and when i press "y" because it is the right application it tells me "invalid application" and immediately closes. help
Are you playing using the Steam version ? I used to have this problem too when I used to use a cracked version and since I've used the actual Steam version it worked for me.
Hmm ... This likely doesn't have anything to do with it but are you on Windows 7 ?
(I only got Steam version after I switched computers so it may be your computer then)
I just got a new computer and i use Windows 10 ( i had the same problem with my old computer )
Could be worth trying a couple of things like running Sonic Adventure 2 and the Spades Tool as an Administrator, and making sure the MANIFEST file for Spades Tool is present in its file directory. It's been ages since I've set it up or fiddled with it, but I recall that being a necessary step in the configuration.
I tried running them as an Adminitstator already, and the MANIFEST file is present aswell. i dont get why it doesnt work :/
I recommend joining the Discord server and directly asking for help in the Sonic Adventure 2 channel in that case, you'll be able to describe the issue in greater detail and receive better help in response.