This papercraft is PED Suit (Phazon Enhancement Device Suit), a Phazon Enhancement Device designed for Samus Aran, based on the Metroid Prime video game series, the paper model is created by Foam Armory.
After Dark Samus corrupted her, Ghor, Rundas, and Gandrayda, their bodies began producing Phazon. The Galactic Federation rebuilt Samus' suit with their PED technology so that she may safely harness Phazon. Phazon Units replace the usual Energy Units, and exposure to some forms of Phazon will restore Samus' health.
The PED is similar to the Fusion Suit in that it melds Samus' Power Suit with GF technology. The PED is also described as a 'fusion' between GF and Chozo technology in its description.
Thanks to the PED Suit, Samus can enter Hypermode and use Phazon against opponents. However, this costs one energy tank. If Samus remains in Hypermode for too long, she will overload and enter Corrupt Hypermode, meaning that she must expel her excess Phazon, and if it fills up completely she will transform into another Dark Samus, which leads to an automatic game over. If she is able to safely sustain Hypermode for too long, the suit's safety mechanism will automatically shut Hypermode down. Each time Samus' corruption grows she is able to access a new ability. The initial ability Samus starts off with is the Hyper Beam, followed by the acquisition of the Hyper Ball, then the Hyper Missiles, and finally the Hyper Grapple.
After the planet Phaaze was destroyed, all Phazon disappeared from Samus' body; as a result, her suit reverted back to the original PED Suit, with no discoloration or other traces of Phazon corruption. After escaping Phaaze through the wormhole, Samus' suit appears to have discarded the PED upgrade, and is now in its usual Varia Suit configuration, as seen when Samus flew past the bridge of the G.F.S. Olympus. [Source: wikia]