I was one of the 5000 people who got access to the demo for this game, and damn am I glad I did: it's a piece of crap. Seriously.
First off, as others have mentioned: it's just a collection of mini-games that are each centered around a Move-specific gimmick. What's worse is, these mini-games aren't even fun (see my next point). The only portion that's slightly enjoyable is the shooting mini-game, and it also happens to be the portion that really doesn't benefit from motion controls.
Second, the motion controls are extremely basic, yet somehow manage to feel janky and broken. For instance, the mini-game that uses the whip mechanic is surprisingly stiff and unresponsive--you get more of a work-out from wrangling with the wand not responding than you do from playing a game of Gladiator in Sports Champions. And then there's the typical game where you have to throw a disc and control its flight path with the Move wand. Wait, didn't the SIXAXIS already do this on several occasions? Why are they dumbing down the Move tech with this junk?
Third, this is just a shameless cash-in using some of SONY's best characters, which is a bloody shame. At least when Nintendo makes mini-game collections using their mascots, 99% of the time the games don't downright suck.
I love all the characters that are making an appearance in this title, and I know I'm not the only gamer who does; and this is why it breaks my heart to tell my fellow gamers: stay far and away from this stinker. Speak with your dollars and tell SONY that their characters AND the PS Move both deserve better than this.