Kamen Rider Build‘s first major upgrade form is Rabbit Tank Sparkling! The show’s toy line celebrates this new form with one of its first deviations from the standard Full Bottle gimmick. This “soda can” functions similarly to the Cross Dragon, having its own lights and sounds that work in tandem with the Build Driver to make its own unique henshin and finisher. The jingle is awesome and the light effects are incredible. This item feels powerful compared to the Full Bottles, and the sounds enhance that feeling. It’s also nice to have a unique finishing sound for a change.
Overall, this is a must own for anyone who has the DX Build Driver. Its a great toy and a nice change from the standard gimmick, plus it has some interactive functionality with future toys being released (but more on that later).