I believe it is a standard taco. What you need to do is map out all the locations for taco bell in your area and see which you can hit within the 3 hour timeframe. By the end of the night you will be heading home with enough free tacos that you can give them out for halloween the next night. LOL
The only true way to arm yourself against other terrible food is by eating the worst and Taco Bell tops that list. I happen to enjoy Taco Bell. Sure, I don't think about what "meant" I'm eating, but I'm cool with kangaroo or whatever as long as it tastes alright. Anyone say a Cheesey Gordita Crunch? Mmm...That being said, I didn't get my free taco, no time.