Twintacle Octotrooper

Twintacle Octotroopers are a variety of Octotroopers in Octo Valley, Octo Canyon, the Octo Expansion, and Return of the Mammalians. Unlike regular Octotroopers, their body consists of two tentacles, and fire rapid-fire bursts of ink at the player when spotted. In addition, Twintacle Octotroopers use their second tentacle to move their vehicle around, which can be trapped in the player's ink, slowing them down. They also have a shielded variant, as well as a diver variant.

Description
Twintacle Octotroopers appear to be like a normal Octotrooper, but have two tentacles instead of one and have an angrier expression. Their variations, however, such as the Shielded Twintacle Octotrooper and Twintacle Octodiver are the same as their Octotrooper counterparts.

Unlike normal Octotroopers who spit out blobs of ink, their assault contraptions have a green button, operated by their second tentacle. Once pressed, it rapidly fires out eight shots of ink.

Twintacle Octotroopers are also seen piloting Octoseekers.

Octo Valley

 * Octotrooper Hideout (Mission #1)
 * Lair of the Octoballs (Mission #2)
 * Gusher Gauntlet (Mission #4)
 * Floating Sponge Garden (Mission #5)
 * Propeller-Lift Playground (Mission #6)
 * Spreader Splatfest (Mission #7)
 * Unidentified Flying Object (Mission #9)
 * Inkrail Skyscape (Mission #10)
 * Inkvisible Avenues (Mission #11)
 * Flooder Junkyard (Mission #12)
 * Shifting Splatforms (Mission #13)
 * Undeniable Flying Object (Mission #15)
 * Propeller-Lift Fortress (Mission #16)
 * Octosniper Ramparts (Mission #17)
 * Spinning Spreaders (Mission #18)
 * Tumbling Splatforms (Mission #19)
 * Unwelcome Flying Object (Mission #21)
 * Splat-Switch Revolution (Mission #22)
 * Spongy Observatory (Mission #23)
 * Pinwheel Power Plant (Mission #24)
 * Far-Flung Flooders (Mission #25)
 * Enter the Octobot King! (Boss #5)

Octo Canyon

 * Sunset Octocopter (Mission #3)
 * Back-Alley Cleanup (Mission #7)
 * Octoseeker Shakedown (Mission #10)
 * Parking Garage (Mission #14)
 * Secret Bowling Alley (Mission #16)
 * Towering Heights (Mission #18)
 * Propellerland (Mission #20)
 * Underground Expressway (Mission #22)
 * The Octogalaxy (Mission #23)
 * Transfer Junction (Mission #24)
 * Platform Madhouse (Mission #25)
 * Paradise Lanes (Mission #26)

Octo Expansion

 * Tubular 8-Ball Station
 * Brute Rollup Station
 * Phat Splatz Station
 * Labyrinth Station
 * Slow Ride Station
 * Duh-Oh Station
 * Iceman Station
 * Slap Bracelet Station
 * Ballercise Station
 * Ink It Station
 * Can't Touch This Station
 * Ride with Me Station
 * Footloose Station
 * Coccyx Phase
 * Villi Phase
 * Diaphragm Phase

Return of the Mammalians

 * After Alterna
 * Twirling, Swirling, Whirling
 * Switching Things Up
 * Charge Now, Splat Later
 * Stamp 'Em Out
 * Trouble Round Every Corner
 * Barriers! They've Got You Covered
 * Zipping over the Neighborhood
 * Low Viz, High Risk
 * Simply Zipcastic!
 * Octarian Heights
 * Torture Tour
 * Conserve Ink—Splat Sustainably
 * Breathe In, Breathe Out
 * Alterna Space Center: Hangar
 * Alterna Space Center: Lift
 * The Spirit Lifter: Steerage
 * The Spirit Lifter: First Class
 * Rocket Battle
 * Return of the Mammalians

Trivia

 * If a Splat Bomb is thrown at a Twintacle Octotrooper, it will attempt to retreat. If there is an open ledge nearby, this can be used to force the Twintacle Octotrooper off of it.
 * When hit, a Twintacle Octotrooper's expression will change; instead of its usual angry look, it appears very distressed and sad.
 * In Return of the Mammalians Fuzzy Twintacle Octotroopers, similarly to their one-tentacled variants, take a short break after attacking several times. They do so after firing two bursts from their weapon. They look very confused when doing this.

Etymology
Twintacle is a pun on "twin" and "tentacle", hence why there are two tentacles on them.