This game works best in a classroom, or with at least 3 players and one "game master".

Colorful boulders are rolling out of the factory. But how are they made? Split the audience into three teams: red, green, and blue. When a color boulder appears, each team must stand up or sit down (or raise and lower their arms) to show how each color is made.

For example, when the red boulder appears, only the red team stands up. When the white boulder appears, everyone stands up. When the yellow boulder appears only red and green stand up.

The game master controls the game simply by clicking the mouse. When the players are ready for a new boulder, click! When the boulder appears and they guess correctly, click! If they don't, just wait... the boulder will destroy the screen and end the game!