Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't waste your money. you will spend oodles on batteries

The first game we ordered blew out about 2 of the butterflies in 60 seconds. brand new "radio shack" batteries. sent it back for a replacement as this is nothing like the commercial. The second one did not blow out any butterflies. I thought, maybe, I got bad batteries. Put in another new pair of batteries, this time an expensive name brand set. It then worked better, however, my 3, 6, and 8 yr. olds got bored waiting for the butterflies to blow out. I thought what would happen when these brand new batteries are not brand new? This replacement elefun is going back also. Great idea but needs some work.