The Luminoth Supply Transport is an old technology originally used by the Luminoth. Appearing only in Metroid Prime 2: Echoes, it was left behind by the Luminoth in the Abandoned Base, and can be used by Samus Aran to get access to a Portal. To activate it, however, she needs to use several Bomb Slots.
"Vehicle: Luminoth Supply Transport. Unit designed to ferry troops and supplies. Unarmed unit composed of durable alloys. Left behind by the Luminoth."
- Samus previously explored a similar scenario to the Luminoth Supply Transport in Metroid Prime Hunters. In Hunters, Samus explored the Drip Moat, a room on which she used an elevator that curved through a long hallway, with Shriekbats, Petrasyl and War Wasps attempting to knock her into the corrosive black water below.