Artifact of Warrior
The Artifact of Warrior is one of twelve artifacts Samus must retrieve from Tallon IV in Metroid Prime. It is protected by a Phazon Elite placed in stasis in the Elite Research of the Phazon Mines. Only after Samus frees it with a Power Bomb and defeats the Phazon Elite can she claim the artifact.
In earlier versions of Metroid Prime, Samus could leave the Elite Research before collecting the artifact. This, however, would result in the disappearance of the Artifact of Warrior, making the game unbeatable, as players would not be able to access the Impact Crater and defeat Metroid Prime. In later versions, the doors to the room are locked until the artifact is collected.