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Specifics: Toy; beast mode; fictional appearances
This article is about the Hasbro Generation One character. For the Takara Masterforce character, see Tentakil (Masterforce).

Tentakil may seem like a nice guy at first. Sure, he'll take you out for a night on the town: dinner, dancing, a movie...the whole shabang. Then maybe he'll compliment your chassis' color-scheme or tell you you have the most stunning optics he's ever seen. Then, of course, one thing will lead to another, you'll ignore your better judgement, invite him back to your place and then BAM! He takes your head clean off. Decepticons. They're all alike.

Tentakil can combine with his fellow Seacons to form Piranacon.

French name (Canada): Tentacule


Marvel Generation One comics

Note: Events from the UK-only comic stories are in italics.

When Shockwave's Earthbound Decepticons established their new undersea base, Seawing and the Seaconss were summoned from Cybertron to work on the base's fortifications, as they were uniquely suited for underwater activity. They got more than they bargained for when the super-Decepticon Galvatron came a'calling. In the battle, Seawing and Jawbreaker managed to momentarily stun Galvatron, but in the end even the combined might of Piranacon couldn't beat him. Enemy Action!

After Shockwave was deposed, the new commander Ratbat kept the Seacons on retainer for another mission. The Seacons were commissioned to hunt down a sunken shipwreck in the water around the Decepticon undersea base, a wreck which supposedly contained two Autobot cassettes with valuable information encoded on them. They successfully obtained the treasure chest containing the cassettes and, despite a brief theft by the Autobot Blaster, managed to recapture the prize and return it to their leader. Unfortunately for them, this led to a sequence of events whereby the treacherous Starscream acquired the power of the Underbase for himself. The Autobots and Decepticons of Earth were forced to unite in order to stop him from seizing ultimate power. The Seacons attacked Starscream in unison in the waters around Manhattan, but were destroyed in a single energy discharge. Dark Star!

Sometime later, during the Earthforce saga, Megatron traveled back in time and possessed the body of Seacon leader Snaptrap during the Underbase Saga, in an attempt to save them in the past to bolster his troops in the present. He failed due to the intervention of Prowl, and the Seacons met their fate as before. Flashback!

Shattered Expectations

The heroic Tentakil and the rest of the Mayhem Suppression Squad assisted Starscream and Razorclaw against a trio of marauding Autobots. Shattered Expectations


Generation One

  • Tentakil (Seacon, 1988)
    • Team ID number: SE5
    • Accessories: Left & right "Slime Lasers", "Tripod Rifle", connector, weapon stand base
Tentakil transforms into a robotic squid with two leg-like lower tentacles. His two "Slime Laser rifles" can be mounted on each side of his beast-mode noggin. He also has a third "50,000-volt lightning rifle" Targetmaster[1] mode, which can be mounted on the weapon stand formed from the "Tripod Rifle" and other accessories, or held in the hand of the Seacons' combined robot. As a "Scramble City"-styled combiner, he can form an arm or leg to any compatible robot combination, though his nominal placement is as the left leg to Piranacon.
This toy was sold in Japan as the Tentakil drone. It was also used to make Scylla.
  • Piranacon (Giftset, 1988)
Tentakil was also available in the Seacon box set, along with his teammates Snaptrap, Overbite, Seawing, and Skalor. Nautilator was not included.


  • Piranacon (Seacon giftset, 2008)
A redeco of the Generation One mold above, Timelines Overbite was available exclusively as part of a Official Transformers Collectors' Club-exclusive giftset containing all six Seacons in new color schemes. He is once again depicted as the left leg of the combined super robot.
This toy was originally intended as an exclusive set of Energon-series Terrorcons, but was shelved due to a lack of retailer interest. The team were called the Piranhacons and their combined form was Piranhaking, but this other Tentakil's name would have remained Tentakil.


  • The instructions for Piranacon parse Tentakil's name as "Tenta-Kil"


  1. 1988 Hasbro Transformers catalog

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