Lego Star Wars, the first release by TT, combines humour, slick-yet-simple gameplay, and fan-pleasing, hidden references. It manages the unique feat of making the prequel trilogy bearable. In fact, Lego Star Wars actually makes Jar Jar a helpful character because of his jumping skills. Well, he's helpful once I stop making him jump off of every cliff I can find. Yeah, the wounds are still raw, George.
The raw concept of how Lego works--building new kits, smashing stuff up, and collecting studs--is devilishly simple, but the reason this game kick started such a successful franchise is that it started with the Star Wars license. Everyone loves Star Wars. Unlike most licensed games, though, this removes voiced cutscenes and replaces them with goofier versions that use only grunts, squeals, and beeps. Smart. This makes the serious moments way more entertaining than they have any right to be, and the light-hearted moments... well, they're even funnier. Still, we will NEVER forgive you for Jar Jar, George. Never.