I bought the rock'em sock'em robots for my 40-year old son because he constantly reminds me that we left his behind in the attic when we moved when he was a child. He was amused by the ones I got from Amazon, but commented that they were about 1/3 smaller and not as sturdy as his original ones were. They also don't make the 'whaaaaaa!' whine when their blocks are knocked off. I would like to find one of the original sets (they didn't have the 3 language choices on the box like these do.) redsorrel