The item is also available in a set with the DX Full Bottle Holder, which can store 3 Full Bottles. The said holder will include the Vacuum Full Bottle. In addition, with every purchase of the DX Build Driver, fans will get a DX Kamen Rider Build Gashat for the Gamer Driver. This special campaign will start on September 2nd.
Another of Kamen Rider Build's forms is the HawkGatling Form, which is equipped with the HawkGatlinger, a revolver-type weapon. This weapon can fire a 100-bullet rapid fire attack. When performing, it says "One Hundred! Full Bullet!"
In addition, BeatCloser is Kamen Rider Close's primary weapon. Holding the DX toy's grip activate lights and sound, and inserting a Full Bottle will activate a finishing move. Some of the sounds are: Hit Parade!", "Special Tune!", "Smash Hit!", "Mega Hit!" and "Million Hit!"
Next is the KaizokuHashaa, a bow-type weapon Kamen Rider Build KaizokuRessha Form uses. In this weapon, he pulls the train back to charge it, and then unleashes the finishing move! Some sounds are: "Kaisoku Densha!" (Rapid-service Train!) and "Kaizoku Densha!" (Pirate Train!)
Lastly, is the RabbitTank Sparkling, a soda drink kind of a Power Up item. Build pulls the tab and sets it into the Build Driver. Pulling the lever will activate Build's power up form, RabbitTank Sparkling Form!
UPDATE (7/16/17): Added the first image of the BuildPhone. Special thanks to SpecialForm12.
[Source: Kamen Rider FB (link 2), Tokunation, Dukemon of Rangerboard]