Goo Tuber

The Goo Tuber is a Main Weapon in Splatoon 2. This weapon can hold a full charge for an exceptionally long time in comparison to other chargers. This allows players to get to a better vantage point or sneak up on enemies with a full charge. Its charging time takes slightly longer than a Splat Charger. However, the range is comparable.

1.4.1

 * gray Fixed an issue allowing players using the to store a charged shot indefinitely by charging briefly, immediately becoming a squid, then keeping the charge as long as  wasn’t released.

Demonstration
https://www.youtube.com/watch?v=gaaY_KNjcho

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Trivia

 * Goo Tuber's Japanese name is "Soy Tuber". This weapon resembles a siphon pump aka shōyu pump (醤油ちゅるちゅる Shōyu Churu-churu).