This Reflex Game requires thinking and is designed to test both you reflex and ability to predict.
In order to play the game press the stop button when the green pebble is coming near the center.
You want to hit the button when you think the green pebble is reaching the center, after you click stop there will be a boost.
The challenge is get the pebble in the center with the boost.
If you mess up you can keep going, but try to get it in the center in the fewest tries.
Press Start to Begin.