Flying Ing Cache
From Wikitroid, the Metroid wiki
In Metroid Prime 2: Echoes, a Flying Ing Cache is an airborne darkling used by the Ing to hide the Sky Temple Keys on Dark Aether. They have an innate cloaking ability and can only be seen using the Dark Visor. After being shot, though, they overload the Dark Visor and appear in the normal visual specrum. A faint outline of them can be seen on Light Aether when the Dark visor is used, though they cannot be shot or interacted with. Samus encounters nine of them on Dark Aether, one holding each of the Keys to the Sky Temple. They are hidden in the dark version of the room where the body of the Luminoth Keybearer who captured that key still lays. Some are protected by large numbers of Ing, while others are behind devilish puzzles, or just hidden in inclement places. The shape of these darklings is very similar to that of an Almbic Datashade.
