Virtual Reality
My daughter and her friend did the virtual reality twice, they enjoyed it so much. I also enjoyed watching on the computer and hearing them scream when the robots got too close. Cost is $50 per person and could last up to 30 minutes. The game only has a few levels, so when you killed off everything, you are done, regardless of the time spent.
Lastly, after getting home, I asked what they liked best on their trip. Both said this.