This game contains less than an hour of gameplay and basically one level. It's not that it isn't cute or enjoyable, but there's not enough content to justify the price tag, even at $4.99. There's supposed replay value, but why would you go through the trouble of choosing the other ghosts when there's literally no difference between them? They don't have any different powers, so you're better off just sticking with the default ghost and playing through it once.
To me, there wasn't enough innovation here. The "hundreds of objects with different powers" get old fast, and not all objects are worth possessing. For instance, the little bottles only spray into the air and don't really scare anybody at all, so if a good portion of your objects don't do much, why would we bother seeking them out? Why not just go for the big ticket items? I could understand if they had interesting animations, but the little objects I'm talking about flat-out don't. I didn't see the big fuss there, and by the end of your first playthrough, it's likely you've possessed them all anyway.
This game might be good for kids who like repetition and don't mind replaying the exact same thing over and over again, but it could have been great for both kids and adults, and that's what bothers me most. It feels like we got 5% of a game for $5. I wouldn't recommend it to anyone.