The EMS-10 Zudah was a prototype Mobile Suit developed by the Principality of Zeon before the One Year War. It appears in the OVA series Mobile Suit Gundam MS IGLOO.

During the Principality of Zeon's race to develop a superior fighting machine, four prototype mobile suits were developed from different engineering companies: one of these was Zimmad's EMS-04 Zudah. It had a good power plant with unprecedented thrust and acceleration. It also adopted a prototype engine known as the Jupiter engine which was based on Zimmad's prototype Mercury engine. However, the suit did have limits: if the engines were overexerted, the suit would overload and break apart. Zeonic Company used this information to outdo the Zudah with their well-known YMS-05 Zaku and successfully marketed the Zaku series.

This, however, was not the end of the story. The Zudah was resurrected under the model number EMS-10, with some minor improvements and cosmetic differences. Its left shoulder was refitted with a movable shield that could be swung to the back, and it was equipped with spikes for melee combat. The EMS-10 is also fitted with the improved "Saturn" engine, which would later be used on the MS-09R Rick Dom. A number of new weapons were also added, including all of the existing Zaku weapons, as well as a new 135mm anti-ship rifle. However, despite these improvements, the suit was still prone to breaking apart from overexertion.