The RX-178 Gundam Mk-II is currently featured in two premium collectible lines: a METAL STRUCTURE Kaitai Shouki figure (AEUG Specification) and an RG 1/144 Keroro Gunsou collaboration kit, both announced in August 2026. Pre-orders for the Kaitai Shouki figure opened on August 27, 2026, with a January 2027 release.
The RX-178 Gundam Mk-II appears in two distinct premium releases announced in August 2026. The METAL STRUCTURE Kaitai Shouki RX-178 Gundam Mk-II (AEUG Specification) is a 310mm figure priced at 137,500 yen, built from roughly 2,500 parts. It features three armor deployment forms, LED gimmicks, and a maintenance hanger base. Pre-orders opened on August 27, 2026, and the figure ships in January 2027.
On August 11, 2026, Bandai announced the RG 1/144 RX-178 Gundam Mk-II (Keroro Spec), a collaboration gunpla with colors inspired by Keroro Gunsou. The kit costs 4,180 yen including tax, ships in October 2026, and includes a full-color package illustrated by Mine Yoshizaki and an original marking sticker sheet.
At the TOKYO TOY SHOW 2026, Bandai Spirits displayed the Kaitai Shouki Mk-II alongside other collaboration figures, including METAL ROBOT Soul Nu Gundam [Sakura Miko Ver.] and Sazabi [Hoshimachi Suisei Ver.] from the Gundam x hololive production collaboration, and RG RX-78-2 Gundam Ver.2.0 [HOLOLIVE PRODUCTION Ver.] and RG Crossbone Gundam X1 [Houshou Marine Ver.]. The Kaitai Shouki Mk-II was positioned as a high-end centerpiece within the Tamashii Nations line, distinct from the mainstream collaboration releases.
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BANDAI SPIRITS opened pre-orders on August 27 for the METAL STRUCTURE Kaitai Shouki RX-178 Gundam Mk-II (AEUG Specification) from Mobile Suit Zeta Gundam. The 310mm figure is priced at 137,500 yen and releases in January 2027. It is built from roughly 2,500 parts and features three armor forms, LED gimmicks, and a maintenance hanger base.
Bandai Spirits opened reservations on August 27, 2026 for several new items in its Tamashii Nations figure lines, including two METAL ROBOT Soul figures from the Gundam x hololive production collaboration. The METAL ROBOT Soul <SIDE MS> Nu Gundam [Sakura Miko Ver.] is priced at 24,200 yen, and the Sazabi [Hoshimachi Suisei Ver.] at 28,600 yen, both shipping in January 2027. Reservations for the Nu Gundam began at 16:00 and for the Sazabi at 17:00 on August 27. The figures feature special coloring based on the VTubers' image colors, dedicated bases, and collaboration markings. The company also opened reservations for the METAL STRUCTURE Kaitai Shouki RX-178 Gundam Mk-II (AEUG Specification), a 310mm figure priced at 137,500 yen, also shipping in January 2027. The Kaitai Shouki figure includes LED gimmicks and three armor deployment forms. These items were displayed at the Bandai / BANDAI SPIRITS booth at TOKYO TOY SHOW 2026, alongside other collaboration figures including RG RX-78-2 Gundam Ver.2.0 [HOLOLIVE PRODUCTION Ver.] and RG Crossbone Gundam X1 [Houshou Marine Ver.].
Bandai's Premium Bandai store is selling the RG 1/144 RX-178 Gundam Mk-II (Keroro Spec), a collaboration gunpla with a color scheme inspired by Keroro Gunsou. The kit costs 4,180 yen including tax and ships in October 2026. It includes a full-color package illustrated by Mine Yoshizaki and an original marking sticker sheet.