"Riot Control Prototype"@en . . "Riot Control Prototype"@en . "The Riot Control Prototype (R.C.P.) is a large spider drone designed to fend off invaders within the Batcave: Outer Caverns. The drone is the first boss encountered in the Batcave: Outer Caverns raid."@en . "Hostile"@en . . "The Riot Control Prototype (R.C.P.) is a large spider drone designed to fend off invaders within the Batcave: Outer Caverns. The drone is the first boss encountered in the Batcave: Outer Caverns raid."@en . . . . "Hostile"@en . . . .