Off-Road Challenge is a disappointing conversion of a mediocre arcade game that lived off its multiplayer races. Unfortunately, the multiplayer mode in the N64 version is pretty darn lame. Off-Road is a squashed gnat on the windshield of a promising genre. The Toyota license can't hide the fact that the menus are directly ported from the arcade. The graphics are dated.
Most objects are blurry sprites, the textures are muddy and the framerate is low.
The cars are cool, that's it. Sampled the tracks from the arcade and played them back as single audio streams. It's called Off-Road Challenge, yet you can't leave the road because of invisible walls. The shoddy physics engine doesn't help. Go and play the arcade version.