The MSN-00100 Hyaku Shiki (百式, "Type 100") is a prototype Mobile Suit introduced in the anime Mobile Suit Zeta Gundam and featured in the sequel series Mobile Suit Gundam ZZ. It was primarily piloted by Quattro Bajeena during the Gryps Conflict and later by Beecha Oleg in the First Neo Zeon War. 

The Hyaku Shiki is a mobile suit built by Anaheim Electronics as part of the "Zeta Project". It was originally designed as the prototype transformable mobile suit, MSN-001 Delta Gundam which incorporated Anaheim Electronics' own "movable frame" technology and backpack-mounted wing binders for additional mobility. However, defects in the frame design led to problems in its transformation and the machine's development was soon abandoned.