Confused – RoboRemote - WowWee Review

I bought roboraptor at a second hand store, no remote. Saw this app, downloaded it and he's not responding, just doing his own thing. Do I need to buy something to plug into my phone for this crap to work? If so, it would be nice for the developer to include that in the requirements section for this app...
Review by Fear The Arch Mage on RoboRemote - WowWee.