To fuse 2 Promins together, the Kamiwaza Power-Shooter must place 2 Kamiwaza Pro-Cards on the top of the Kamiwaza Shaker. The Kamiwaza Power-Shooter then closes the Kamiwaza Shaker and then shakes it until it says 'Finish'. The Kamiwaza Power-Shooter then opens up the Kamiwaza Shaker to see the result. These fused Promins are called symphetic Promins.
Summoning a symphetic Promin can be done by placing the Kamiwaza Shaker on the back of the Kamiwaza Power-Shot.
If the Kamiwaza Power-Shooter messes up with the Kamiwaza Shaker, the result will be the attributeless Promin Unchikomin.
For a tri-symphetic Promin, the Kamiwaza Power-Shooter must fuse 3 Promins instead of 2.
Awakening a Fact-Promin
The Kamiwaza Shaker is also used for awakening Fact-Promins. To summon an awakened Fact-Promin, The Kamiwaza Power-Shot has to hold out their Kamiwaza Shaker to release it.
The Kamiwaza Shaker is also used for summoning the secret Promin Wonder-Promin. To do this, the Kamiwaza Power-Shooter must hold out their Kamiwaza Shaker and say out his name.
In the series
The white-and-black Kamiwaza Shaker made its debut in episode 25 when Yuto introduced it to his Kamiwaza teammate Wanda as well as his sister Yui and his 4 friends Mirai, Shuu, Nicole and Souma. Yuto then uses it to fuse Turbomin and Chakkamin together to create the symphetic Promin Chabomin.
Another Kamiwaza Shaker appeared in episode 38. This time, it's coloured black and purple and was taken from the Bug Bites and Great by Masato. Masato began fusing Promins with that Kamiwaza Shaker in episode 44.
- The Kamiwaza Shaker resembles either a cocktail-shaker or a milkshake-mixer. However, instead of mixing drinks, it fuses 2 or 3 Promins to create symphetic Promins.
- Masato's Kamiwaza Shaker shares its voice with Masato's Kamiwaza Power-Shot.