The Alt Eisen (アルトアイゼン, Arutoaizen^?)is a fictional robot in the Super Robot Warsseries. Its upgrade is known as the Alt Eisen Riese (アルトアイゼン・リーゼ,Arutoaizen Rīze^?). It appears as a playable unit in Super Robot Wars Compact 2 (Part 1 and 3), Super Robot Wars Impact, and the Super Robot Wars Original Generationseries. It also appears in Super Robot Wars: Divine Wars and Super Robot Wars: The Inspectors. Alt Eisen is German, meaning old iron or scrap iron and is part of a German expression, "zum alten Eisen gehören", which means "belongs on the scrap heap". Alt Eisen Riese means old iron giant or scrap iron giant.