The PK system of the brain master is a question-answer system related to the interaction of friends. Players can use this system to decide the outcome of their friends, compete for their brain power, and spread their relationship network. Next, let’s take a look at the PK system of the brain power expert.

You can make the decision on the various questions of brain power experts

First, the player selects the friend you want to challenge in the friend list, and then multiple-choice type, and then you can challenge the friend.

If a friend is online, you can directly connect with him and engage in real-time battles.

If a friend is offline, players can play the game first, and then after the friend goes online, they will receive challenges issued by everyone.