LucasArts and Traveller's Tales have uploaded a LEGO Indiana Jones 2 demo to both PlayStation Network and Xbox Live over the Christmas break.
The demo is 425MB on Xbox Live and presumably a similar size on PSN. Top journalism, right here.
We don't know what's in it either, because we were too busy drinking sherry and then buying the Mako remote control car for our Xbox 360 Avatar (he already has the N7 armour) when the demo came out.
However, our LEGO Indiana Jones 2 review can help you out with why it's a good game despite a few flaws, and how it stretches the four films over more content than ever before.