A variable is a number that changes. 1. Play the game! Press the green flag to start. Press the space bar to drop donuts in front of the cat. 2. What are the variables in this game? What makes them change? 3. Remix! Purple Cat wants donuts too! Can you add a variable to count their score? 4. Challenge mode: Use ONE score variable, but make the score go UP when Orange Cat gets a donut and DOWN when purple cat gets a donut.