The Eternal Forest is an area near the end of Gaudile Laboratory in Mega Man X: Command Mission that can be completed anytime after defeating Mad Nautilus, but it is recommended to wait until the level of the player's characters are around 25-40 before taking some of the longer paths due to the strength of the enemies found here, which aren't normally encountered until the end of the game and are quite hard on lower levels. The Rare Item Storage Room Keeper at the end of the path will reward the player with Items, Zenny and Tank Energy of various amounts. Also Item Boxes may be present too.