Instruct: Classify a given review into positive or negative sentiment.
Query: Challenging, fun, but inconsistent

My basic review is this: Mindtrap is a fine game. However, it's not a consistent game in terms of the answers required to win. Some of the questions are really challenging and, given time to think, you can often come up with a good guess. But about 20% of the time, the answer is so ridiculous that you may never get it. Some of the questions are mensa-type questions, but others are borderline absurd - you'd never get them right even if you had all the time in the world. Perhaps that's one way to guarantee that even a braniac is going to lose a turn eventually, and it keeps everyone on a level playing field. Check out Mindtrap II as well.