Jump your tower to make it bigger. Each cube has its own special feature, so be careful. And if your jump is not successful, your tower will fall.
Complete missions to get more points and coins. The bigger the tower you build, the more points you get. Set high records by building a tower of different cubes. And you can upgrade your starting cube in the store. Skins can be interesting and some even have pop culture references.
But remember that your tower is very weak, so jump carefully. Random cubes will move towards your tower. They can make or break your tower.