The Fizzy Bomb appears to be a soda can with some metal strapped around it. The can itself has the logo of Fizzy on it as well as a simple bubble pattern and changes color to match the user's ink. The metal is attached to the top and bottom of the can and is strapped to a wraparound belt. When the can is shaken, it expands and there is a clicking noise that is presumably the belt expanding along with it. When the Fizzy Bomb is at its maximum charge, the can begins to glow.
The Fizzy Bomb is a Bomb-type sub weapon that is capable of exploding multiple times. It can be charged up by holding down the button, increasing the amount of times it explodes. Each explosion propels the bomb forward a small amount. To charge it up faster, the player can also shake the controllers physically, jump in-game continuously (mash ), or move around in-game quickly. When is released, the bomb is thrown. It sprays a thin ink trail behind it as it travels before exploding. Depending on how long it was charged, it may explode up to three times.
With each new charge, the bomb makes a "clink" sound. Upon finishing the final charge, the "clink" sound is louder. The weapon was first teased at the September 2018 Nintendo Direct, along with the Kensa Collection of weapons, two new special weapons and changes to Splatfest.
The Fizzy Bomb was released in Version 4.1.0..
The existence of a brand-new sub weapon, the Fizzy Bomb, was just confirmed in the latest Ver.4 trailer! We heard that once you activate it you can shake it like a can of pop (or soda depending on your geography) to generate power once it's released! This carbonated sub weapon will be included in weapon sets arriving in early October.
The weapon's name is a reference to the fizz, or the hissing sound and bubbles of gas, that cans of soda can release if opened after being shaken, similar to the weapon's charging animation. In addition, the weapon resembles a soda can, as well as an M67 grenade.
This weapon was found by data mining as early as version 3.1.0, functional but without a model. It had the internal codename "Piyo", which is a common placeholder name in Japanese computer programming.
The Fizzy Bomb is the first sub weapon to have been added post-release in the Splatoon franchise.