This Darth Vader may not have James Earl Jones's wicked baritone or David Prowse's imposing height (nor even Hayden Christensen's adolescent whine), but the evil overlord skills on display simply cannot be denied. It just goes to show: there's a little force-wielding maniac in all of us.
Seriously, how great would it be to be able to make the Imperial March start playing on cue like that? I'd walk through life terrifying everyone. Or at least repeatedly startling the cat.