The ALS Ice Bucket Challenge, is an activity involving dumping a bucket of ice water on one's head to promote awareness of the disease amyotrophic lateral sclerosis (ALS) and encourage donations to research.
People who are tagged by his/her friends, you may dump ice water or donate money within 24 hours, then help spread the message throughout the world!
How to play:
If you have money, click the donation box.
If you don't have, click the bucket and feel the coldness.