Instruct: Classify the given review as either positive or negative.
Query: uptrodden

I don't know if the product even works as it is impossible to even insert the batteries. (4 people tried per the instructions to open the temporal scanner for insertion of battery - none could get it open). So much for quality control. One can only wonder if this product is made by toy manufacturers in China or the quality people had one to many the day my temporal scanner was produced. Forget temporal - it was a permanent product screw up