We found the game for rent (my wife: "let's rent before we buy it."). It's not a bad idea to rent the ones you're unsure of, but between the two of us, we played for about 2 hours, getting to level 1-3. We're sort of stuck, looking for the red palm tree (I figure we missed something simple somewhere). Bascially we love it - but I do get tired of all the text at the beginning....and Count Blech's ego is WAY out of control (which to me was only funny the first few times, then got tiresome).
The 2D to 3D is a really, really neat element of the game, however.