Is there a game that prompts students to encourage other students?

I've found it's a lot how you play certain games.
For example, I play Bomb Games from this site in my class.  It was good, but unfortunate because there would be a team of 4 students and the smartest student would always answer.  Then the other students would just defer to the smart student.
I now make it so that every time a team answers a question, a new student has to answer it.  At the very least, the team tells the other student the answer and they have to say it (which I hope helps imprint it in their brain at least a little more than it would otherwise).