I'm looking for a way to find e.g. the command name for an application that does appear in the dash.

More specifically: I installed the game Costume Quest (from the Double Fine Humble Bundle), and more recently wanted to uninstall it. So I uninstalled it through the Software Center. However, the application still runs, even though the Software Center tells me it's not there.

So I wanted to uninstall it through the command line, but I don't know the package name, or command name. It appears through the dash when I search "Costume Quest", it will run when I click the icon in the dash, but I can't seem to find any file or folder that may give me a hint for the command/package name.

I'm running 13.04, will say more about the hardware if it turns out to be relevant.