The game shouldn't cause any issues while uninstalling, but if you can't remove it it's because the registry entries that keep the uninstall information were corrupted. Try using Revo Uninstaller. Even if it can't uninstall the application normally, it will force it to uninstall by wiping out all traces of its presence from the system.
After that, try running AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.
