Quite disappointing and here's why...
You start off in Andy's room and kill a few heartless as usual. After talking to woody and buzz, they ask sora to help them find their missing friends. You get to spend some time in the neighborhood, but the area isn't all that big. You also can't even explore Andy's house, only his room. After that you just move on to a Toy Store, where you find yourself fighting robots and more robots, you get to control the robots aswell and shoot enemies in a first person perspective, but after that not much happens. The mech sections get boring and the areas never really change to give you a fresh feeling. It seems that they wanted to make bigger worlds but they forgot to add variety to the gameplay. For a game that has been in development for 13 years or more, this is very upsetting.