Transteam Gun

"(Fullbottle Name) Mist Match! (Fullbottle Name) (Stuttered version of the name) Fire," - The transformation announcement from the Transteam Gun.

The Transformation Smoke Pistol Transteam Gun (変身煙銃トランスチームガン Henshin Enjū Toransuchīmu Gan) is the personal weapon and transformation gear for Night Rogue and Blood Stalk, which was created by the Devil scientist, Takumi Katsuragi. If combined with the Steam Blade, the Transteam Gun will result as the Steam Rifle.

As Takumi created it along with the Rider System, he designed it to not raise the Hazard level of the user, meaning the user only relies on skill and experience of fighting. It is also referred as the Transteam System.

Beat Closer

"Hippare! Smash Hit!" - The single pull Hippare announcement.

The Pulling Instrumental Sword Beat Closer (ヒッパレ奏剣ビートクローザー Hippare Sō Ken Bīto Kurōzā) is a weapon from Kamen Rider Build. The user of it is Ryuuga Banjou, who can summon it in Cross Z form. The creator of it is Sento Kiryuu.

Kaizoku Hassha

"Kakueki Densha! Kyuukou Densha! Kaisoku Densha! Kaizoku Densha! Hassha!" - The sound of the Kaizoku until the fourth tier.

The Departing Sailing Kaizoku Hassha (出発出航カイゾクハッシャー Shuppatsu Shukkō Kaizoku Hasshā) is one of the weapons in Kamen Rider Build. It is themed of a pirate and a train blade-arrow that was invented by the genius physicist Sento Kiryuu. The weapon was built for Kamen Rider Build's KaizokuRessha form.

Hazard Trigger

"Hazard on! (Organic Fullbottle name)! (Inorganic Fullbottle name)! Super Best Match! Don Den Kan! Don Den Kan! Gata Gata Gotton! Zuttan Zutan! Uncontrol Switch! Black Hazard! Yabei!" - The transformation sound into any Hazard form.

Hazard Trigger (ハザード トリガー Hazādo Torigā) is according to Soichi Isurugi that it is the forbidden item from the devil's scientist Takumi Katsuragi. Similar to Sclash Driver, it has a side effect, in which prolonged use will make the user lose their sense of self. When used on a Smash, it will die once defeated. It is able to upgrade Best Matches in Hazard forms and upgrade Smashes into Hazard Smash.