Like Leviathan, it have turquiose fins & a blue armor. But as a addition, this LBX has a different tail, additional fins at its head & more mechanical like features. It also have a somewhat a bit different colour-scheme than Leviathan & a Restriction strip on its chest to connects to the back.And when Restriction Release is activated, the strip will disconnected from the front & spread to the back. Not only that, Poseidon's fin will enlarged, just like Leviathan in Aquajet Mode. At this time, Poseidon can also move swiftly.
- Jet Trident (a trident with rockets equppied)
- Leviathan's Fang
- Restriction Release: In this mode, Poseidon can move swiftly like Leviathan in its special mode. But in addition, it can control water around 15 cm radius, making it possible to damage & trap opponent's LBX with water & enchaned weaponry. But this LBX can only control water when it is present, which can be a disadvantage so Poseidon's Attack Functions are set to spout out water as they are unleashed.
- Tri-Splash Lance: A Lance throwing techique that lanches 3 water lance simultaneously.
- Levia-Surge Spread: An upgrade version of Leviathan's Levia-Surge. Poseidon does some of the moves of Levia-Surge but added some dash-through attacks, heavy slams & throws. This attack ends with Poseidon dives down thowards the opponent form above, crushing the target with head of the lance & it's feet.
- Atlantis Banisher: A technique that can be used during Restriction Release. In this technique, Poseidon attacks its target with several fists, punches & lances attacks before jumps into the air, using the target as a platform & launching the target to the ground. It then throws its lance onto the ground (onto the target), creating a magic circle that reveals the Lost City of Atlantis below water. Soon, the enemies in the magic circle will be damaged by a torrential blast of water that came shooting out of the circle.
- Leviathan (predesessor)
- This LBX's name is based on the god, Poseidon.
- The Attack Function, Atlantis Banisher is made based on this stupid question "Why did Atlantis exist underwater? Did someone sink it?"