Complex sentence: Unlike his previous appearances, Stockman is controlled remotely by the Shredder with a robot eye implant that covers up his previous wound that shocks Baxter when he disobeys his orders or becomes arrogant.
Split into simpler sentences: Unlike his previous appearances, Stockman is controlled remotely by the Shredder with a robot eye implant that covers up his previous wound. That shocks Baxter when he disobeys his orders or becomes arrogant.