As the name suggests, Perfect Grade gunpla kits attempt to represent the Gundam as perfectly as possible within real world and design limitations. These limitations result in the Perfect Grade line sometimes taking several years between releases to wait for advances in model making technology. Perfect Grade Unleashed is an updated version of Perfect Grade that uses more advanced technology and concepts, such as the return of Advanced MS Joints, the use of LEDs, hard plastic stickers and metallic etched parts, multiple points of articulation in the same limb, and the Evolution Link System, where the construction is separated into multiple phases (starts with the bare inner frame, then the extra detail within the frame with metallic parts, then the armor attached to the frame) to simulate building a real mecha, with the final phase displaying the detail of the inner frame using multiple hatches.