Security Robots are enemies in Mother 3. They are found at the (now abandoned) Clayman Factory in Chapter 5. Similar to Recon Mechs, they can sound an alarm to get the attention of other enemies and fire a DRoW-Z beam .
Its battle sound is Battle Sound 54 which falls under Code Numbers 921 for regular attack, 922 for Smaaaash! and 923 for Miss. However, like Recon Mechs, because it never uses regular attacks that play a battle sound on its own, Kumatora must use Brainshock on it to get it to use a regular attack.