The sense of momentum added to this style of game by the 3DS is what first grabs you. Jetting over a building feels more physical. It opens my eyes to the potential for a whole tonne of classics to be reinvigorated by the extra perspective.
The second game I properly 'play' isn't exactly hardcore - Nintendogs + Cats. Despite the name, there's no felines in this demo. It shows off another of the 3DS's features: facial recognition.
Calling over my pup and sticking my mug close to the screen causes him to 'lick' my face. Likewise, tilting my head causes him to do the same (though buggering up the 3D illusion slightly in the process, admittedly). I make a firm decision: I'm NOT going to be playing this on the tube.
As you can probably imagine, lobbing a tennis ball, swinging a Frisbee and hoofing a boomerang become instantly more compelling when enhanced by Nintendo's gorgeous tech.
The question is, will developers explore the potential gameplay enhancements 3D could introduce - such as those seen in Pilotwings - or will they simply put out a bundle of gimmicks?
It's too early to make a final judgement at this stage, with a lack of hands-on demos throwing up a big question mark: After all, it's much easier to make 3D gaming look revolutionary with an on-rails video.
What's for certain is that the 3DS is the most exciting thing to happen to gaming in a long time. And if I was to put my money on anyone getting it right - and offering that all-important value for money - it'd be Nintendo.