It looks like you're using an AdBlocker.
With AdBlocker, some games might not work properly. Please disable adblocker on our site and click refresh to continue. Thank you!
Lines are moving with different speeds in the 3D world. Each line is on the definite distance from you. Define which lines are moving faster, which are moving at average speed, and which are slower. You will have limited chances and you should make their best use to take up the challenges in the limited time. Score points that you can submit to compare your performance with that of others.