Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do not buy this.

I bought this toy for my sons 6 birthday. He was so excited. It didnt work after 2 adults tried for an hour. So i exchanged it, again it didn't work. Three times the charm not so much. after the 3rd time we gave up and got our money back. Not worth the head ache my son is still disappointed.