Hadji flings up an unconscious guard's arm to have it appear as if he's waving hello to another guard. Obligingly, the unconscious guard holds up his raised arm for a few seconds for Hadji's attempt to come out as Hadji intends, like a friendly wave.
Race destroys the volcano's generator. It knocks out the lights but leaves the electric door and alarms still operating.
The volcano personnel. For a group that would seem to want to be secretive, using flying platforms colored pink to patrol around in the sky like bees around a hive doesn't seem the logical way to stay unknown and keep your existence hidden.