Ratchet Clones were clones of Ratchet created by Otto Destruct, which, during the final events of Size Matters, were made into a toy called Battle Ratchets. The clones had two fatal flaws: they didn't have Clank, and Ratchet was much stronger.
The clones looked similar to Ratchet as viewed, however, they were deformed,but had a few good abilities. They were given their own characteristics and appeared wearing or doing whatever they were supposed to do. As the ones with Sonic-reference sneakers and a skinny body represented speed, and the big brawny ones represented strength. The big, high-healthed, Concussion Gun-wielding clones were the easiest to defeat, due their short ranged Concussion Gun and slow movement.