"What is this thing?"
This disambiguation page lists articles associated with the same title. If a link led you here, you may wish to change that link to point directly to the intended article.
Alpha (α) is the first letter of the Greek alphabet. Alpha may refer to multiple subjects within the Metroid series:
Connection Elevator to Deck Alpha
Deck Alpha Umbilical Hall
Phazon Elite, also known as Elite Pirate Alpha
The Emperor Ing, the alpha and omega of the Ing.
The Alpha power storage rack in Bioenergy Production.