Some people go to college for years to learn how stars are created, but in the Zodiac Reactor, it doesn't require a degree and years of college. By combining the four elements - earth, wind, fire, and water - the Zodiac Reactor will create stars. They are tricky though, because the elements can only be captured at a certain time. The up arrow represents fire, the down arrow air, the right arrow is earth, and the left arrow is water. By clicking the appropriate arrow at just the right time, you will be able to capture them all and create a star.