It's a fight to reach the summit faster than the other player! The spinner determines the colour of the holes you can use to attach your climbers' limbs each turn. The more risky movements you made, leaving limbs unsecured, the quicker you'll ascend, but also, the easier the other player would make you fall if he lands in the same spot from the other side and kicks you out of the hole. The first player to take his two climbers to the summit, wins the game.