Both Gundam Cow Gundam and Manatee Gundam must be entered twice. Gundam Cow and Gundam Manatee are two different Gunpla models, each with unique features and designs. The Cow Gundam is a Federation Forces mobile suit modeled after Amuro Ray, while the Manatee Gundam is a Zeon Army mobile suit modeled after Char Aznable. Niu Gundam is characterized by powerful firepower and is equipped with powerful weapon systems, such as rocket launchers, laser guns, etc. Its shape is bulky, but in line with the style of the Federal Army. The Manatee Gundam is relatively lightweight, blue-white in appearance, and more streamlined. The Manatee Gundam is designed to pay more attention to mobility, so its legs have relatively good mobility. All in all, the necessity of double penetration of Cow Gundam and Manatee Gundam depends on your interest and preference in Gunpla. If you like both models, the double entry is a great option.