http://www.psxextreme.com/scripts/reviews3/review.asp?revID=5
7.9 out of 10
Pretty solid score for a 1st Gen title
If you're a fan of the Underground series, there's no doubt you'll enjoy Rivals' gameplay. It embodies everything that makes Need for Speed fun, including what seem to be the series' two core modes: a Battle mode and Circuit mode.
For a handheld title, Rivals is a triumphant achievement. The game is primarily set during the night time, a setting that helps to showcase some of the visual tricks that the PSP can achieve. The reflections in the game are absolutely incredible; they're so clear that you can easily read a road sign reflecting off a car. You won't just see a generic blur effect. The actual environments reflect off of the cars. What's more, the reflections animate at the same frame rate as the game, so they come off looking incredibly smooth as they beam off of your car.
7.9 out of 10
Pretty solid score for a 1st Gen title