Strange problem; is this common?

I've been using a ROM of Beetle Adventure Racing, and for some reason, the care models are transleuscent. I cannot change the car's color, and if there was a breakable wall, it's transleuscent, too.
All lighting effects appear in a strange way. For example, if I hit the brakes on my car, instead of two normal lights coming on, two solid-colored red rectangles appear. The same is true of yellow streetlights.

Can anyone diagnose this? Thanks!