The graphics and sound were pretty decent, but none of that really matters with broken gameplay.
And the value of the game is...wait, what value? There's three leagues to compete in, each having 3 or 4 tracks. The races take 3 laps each, and that's it. There's 2 player and time trials, and baically nothing else. I played this game and basically "beat it" within a couple hours, so I question if it's even worth renting.
In the end Rollcage is a good idea, but the execution of driving on walls and ceilings is broken. DO NOT GET THIS GAME.