Players noticed various subtle changes in the game over time. In the earliest months, through about November 2006, players could see each other's guesses during play by mousing over the image. When "congenita abuse" started (see below) the player could see if his or her partner was using those terms, while the game was underway. The game was changed so that only at the end of the game could a player click "see partner's guesses" and learn what he or she had typed. "Congenita abuse" was finally stopped by changes in the structure of the game in February 2007. During the first few months of 2007, regular players grew to recognize a group of images that signified a "robot" partner, always with the same labels in the same order. This appeared to have changed as of about March 13, 2007. Suddenly most of the images seen were brand new, and the older images came with extensive off-limits lists.