Destruction Derby 64 is pure mindless fun and a blast from the past! It's all about smashing cars into each other – racing is almost secondary. Controls are simple, and the crashes are satisfyingly chaotic. Sure, it gets repetitive after a while, and the music's pretty terrible, but if you want some arcade-y demolition action with a retro twist, you'll probably enjoy this for a few hours.
I was a big fan of the early PS1 Destruction Derby games and I had the chance to play this N64 installment a handful of years ago. It wasn't too bad but I find the PS1 games to be more memorable. None of them are what you would call easy to go back to but, anytime I can give my dust covered N64 a little attention, I definitely try to.