FutureGamez has posted their review of MX vs ATV Unleashed for the PS2, giving it a rating of 75/100.
The real meat to this game is the championship mode, which runs over 16 weeks. Each race consists of 3 rounds with your two highest score counting towards your final score. The field of racers is 6, and if you finish lower than 4th you will have to try the race again. To break the game up every few rounds you will be challenged to take part in another race, this time in various vehicles, such as an airplane, dune buggy, monster truck, golf buggy and some other cool machines, during the game you will encounter over 40 unique challenges.