I have the Playstation 2 version and when I was playing, there were major glitches on the track. Disappointing game. But I still want to thank the person who gave it to me.
Operationally ok for kids, but a poor game overall
My four year old had no problem playing the game, but it's cheap - poor graphics, poor handling, too many courses that you have to unlock in story mode.
Also, the characters in their monster truck mode have very aggressive attitudes and speak in angry tones.