Game Scope - Gamer Driver - Kimewaza Slot Holder - Rider Gashat - Energy Items - Buggle Driver ( II) - Bugster Buckle - Gashat Gear Dual ( β - Another) - Rider Gauges - Rider Gashat Case - Energy Item Holder

Movie-exclusive: Genm (Bakusou Treasure) - Kagenari Nagumo - Ninja-Player - Black Parado TV Series: Emu Hojo - Hiiro Kagami ( Game World) - Taiga Hanaya - Kiriya Kujo - Kuroto Dan - Parado - Asuna Karino/Poppy Pipopapo - Masamune Dan - Ride-Players ( Nico Saiba - Haima Kagami)

It is also the only Gashat that is completely named after its Rider counterpart.

The Gashat for this game is the only Gashat to have identical Level 2 and Level 3 jingles that isn't a Proto Gashat.

The Level 2 and 3 jingles are a remix of Mighty Action X's Level 2 jingle.

This may be due to Build being a succeeding Rider to Ex-Aid, rather than a preceding Rider.

The Level 1 jingle is similar to those of other Legend Rider Gashats, but it ends with Kamen Rider instead of Legend Rider.

Like the Build Driver, the Kamen Rider Build Gashat is voiced by KORBY.

Unlike preceeding Rider Gashats, its associated Build Gamer has yet to be visualized either on-screen or via Ganbarizing. The Kamen Rider Build Gashat was introduced on-screen in the final episode of Kamen Rider Ex-Aid and later features in the film Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders. It doesn't seem to spawn any Energy Item containers.

When activated, the Gashat reformats the battlefield into a Game Area. Uniquely, these 'forms' are not associated with a Level and official materials do not treat them as being distinct from the Riders' normal forms. Instead of transforming the user into a new base suit or summoning armor, the Build Gashat instead allows Riders to bypass Enigma's block on them, allowing Brave and Snipe to access their Level 2 forms, Lazer Turbo to access Level 0, and Genm to access Level X-0 without the need for Proto Mighty Action X Origin. After the battle, it is unclear what happened to these Gashats. Originally, there was only one copy of the Gashat, but Onari managed to convince Kuroto to create more copies for the other doctor Riders to use in combat. This Gashat would later appear in Kamen Rider Heisei Generations Final: Build & Ex-Aid with Legend Riders, allowing the doctor Riders to transform despite the Enigma energy disabling their ability to transform. Following his encounter with Kamen Rider Build, Kuroto Dan, having produced an assembly of Rider Gashats based on Ex-Aid's seventeen Heisei Rider predecessors compiled into Ganbarizing in the past, created a Gashat based on this new Rider.

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