I played Theme Park DS for nostalgic reasons, I played that game too much in my younger years when it was released. I played the PSP version of this game long ago, and I've tried the XBox 360 demo for this game... there's some fun things and some blah things about this. It is like Theme Park in the fact you build a full theme park and build roller coasters.... but for placement is limited (so you don't get to do all the layout of the park, as you had freedom in theme park and roller coaster tycoon games). But the fun thing this game adds is the ability to play all the carnival games, and race the go-karts on tracks you created, and ride the rides... not sure how much of this the DS version will include. I'll try this... but I doubt I'll play it as much as I played theme park.