As the name suggests, Grenade Bots fire grenades at Cole. Luckily, Cole can deflect these grenades with a blast from his Shockwave. They float around and are extremely agile, and are capable of becoming invisible, making them difficult to detect. They have two devices on either side of them and have a single blue "eye" in the center. They regularly appear in missions. When not attacking, the bots can become invisible leaving behind a shimmer in the air. Also, Kessler can create them using his lightning powers.