ID Weltall is a powerful and mysterious Gear (mecha) that appears in the RPG Xenogears. Piloted by the enigmatic character known as Id, this red version of the main Gear, Weltall, is distinguished by its immense destructive capabilities and its association with Fei Fong Wong’s darker persona. As Id's Gear, Weltall-ID plays a pivotal role in many of the game's most intense battles, symbolizing both Fei's internal struggles and the destructive potential of unchecked power.