Hi guys.
I installed hotline miami and now would like to remove it.
I tried chmod +x 'uninstall-Hotline Miami.sh' in the terminal and nothing happens...

I'm an absolute beginner when it comes to Linux but I usually use 'apt remove app' or 'apt remove --purge app' to uninstall software. Specifically for games you could give Lutris a go next time, it's very user-friendly and you can connect your gog account to manage your games.

I hope this helps until someone more knowledgeable extends a helping hand.

Edit: nevermind, timppu gave a much better answer :)

Uninstall scripts are executable already, no need to modify them. You should be able to just double click it in file manager.

Or you can just manually remove game folder from GOG Games and .desktop files from .local/share/applications. It's the same as script does. There might be also remnants like config files and save files scattered around .cache, .config or .local/share that need be deleted manually because script will not track those.

Ok, thanks guys!!