Toy Home is maybe not the best game on PSS, but as a multiplayer game it's one of the better.
Basically, there are multiplayer and singleplayer. Singlepalyer is almost not worthy to be called so. However, it is the MP who makes this game. You can play multiplayer online or splitscreen, but online is like every small game, it's dead. The only chance to play online is to find a friend to play with. The game does not have so many tracks and cars, in fact you only got 2 cars to choose from and 8 tracks. But with a DLC-package you got lots of new cars and tracks and you can play up to 4 players splitscreen.
The game is fun, but does not fit everybody. You got to have a inner child to enjoy this game.