Each GO mental™ question contains 4 apparently unconnected things - they may be people, places, events, objects, or just plain things. Some will be instantly familiar, others down right strange. The point is, 1 of the 4 is the odd one out. The other 3 are somehow connected. First you must correctly identify which of the 4 things is the odd one out. Get this bit right and you move 1 space forward. Second, and providing you've got the odd one out right, correctly state how the other 3 are connected. Get this bit right and you move an additional 3 spaces forward.
At the start of the game, each player is given a number of Steal Cards. By playing these, another player can snatch your turn. But, ha-ha, then it’s their turn to be careful! That’s because anyone stealing a question has to get both parts right – the odd one out and the connection – in order to move the full possible 4 spaces forward. If they get either part wrong, they have to move 4 spaces backwards!
At the start of the game, each player gets some Challenge Cards. By playing these, if you get a GO mental™ question you don’t want to answer, you can challenge another player to answer it instead! If they get it wrong (either part, that is), they have to go backwards 4 spaces! But, watch out! There’s a risk. If you challenge someone and they get both parts right – they get to move forward 4 spaces.
Be the first player to get your brain from the GO space at the top of the board to the mental space at the center and you win.