Based on the line of collectable figures from 3A Toys and Ashlie Wood. 

"The Square, smallest of all robots designed by Rothchild and Co. Essentially an autonomous intelligence (allied troop position, enemy position, telemetry) gathering machine, the Square plays a pivotal part in all battlefields on both sides that Rothchild had to devise special empathy features on top of heavy armor to help lengthen their up-time in the field. Known as the "carnival effect", the Square attempts to disarm all those who come across it with sickly childish features combined with specially designed audio emissions of the phrases such as: "Why can't we just get along?" and "Come out and play", all with the tone of a small child."

http://www.threeawiki.com/Square