This is going to be a hot item this holiday season! Skylanders: Spyro's Adventure is available across all the platfroms (Wii, 3DS, XBOX 360, PS3, and PC), and has a very cool approach to the gameplay.
In order to play you will need a "Starter Pack." This includes the game, 3 characters, and the Power Portal. You can start the game, and the place a character on the Power Portal to have them appear in the game.
The cool thing is that say you have progressed thru 50% of the game...Your characters will increase their attributes as you go along. So what you are thinking...Well if a friend just gets the game, and you head to their house you can take your character, regardless of the system, and place it on their power portal and be in the mix with your "leveled-up" Skylander....very cool!
If you buy the game for a 3DS and get Dark Spyro you can then play him on your Wii version and at friends houses who have a PS3 or XBox etc.
When I was in Toys'R'Us this past Saturday they had a promotion going where you can buy the game and get a free Adventure Pack (Darklight Crypt). I had to take advantage of that...The thing is every kid that walked by just the add-on character packs went in a frenzy for them...
I thought that was pretty crazy until I made my way to the gaming section (the local Toys'R'Us had them on separate ends of the store) kids were mezmerized. Parents got into it too. The lady running the demo, who had a snazzy Skylanders shirt by the way, would even continue playing and swapping characters when no one was around.
I think it is well worth the $69 to get in on the action and don't mind the expense of the add-ons because it is such a ground breaking concept. It is much like downloadable content, but you (the end user) have something physical to show for it.
I'll quit rambling as the video covers most everything, if you've got any questions just let me know and I'll do my best to help you out!