The Phazon Site was a part of Dark Agon Wastes explored in Metroid Prime 2: Echoes. It had an abundance of Phazon (as its name would suggest), as well as a large number of Dark Tallon Metroids. The room was connected to three other rooms, one of which housed the Sonic Boom upgrade. When Samus Aran first visited the Phazon Site, it was infested by Inglets. There were three Interface Modules in the room that Samus needed to scan in order to proceed to the next room. Floating platforms allow access to a higher level, where a striped door guards the Sonic Boom.