Ironclad Tarantuar

The Ironclad Tarantuar is a boss encountered in Pikmin: Spark, it is the boss of the Cavern of Cobwebs. It is a relative of the Arachnode and has a noticeable thick metallic shell on its body that protects it from direct physical attacks. It dwells deep in the northernmost point of the cave in its personal den holding onto the Data Box which is required to progress to the next area. As said previously its metallic hide is immune to most physical attacks. Likewise, the Ironclad Tarantuar mainly uses physical attacks itself when battling Pikmin. Using its venom-coated fangs it can either rapidly bite across the arena to swallow Pikmin, or cause the fangs to foam with toxic acid and spray that as an attack. It also can roll up into a giant metal ball in an attempt to crush Pikmin with its body. However, its most potent attack is the ability to scatter Bomb-Rocks with its thorax via a small hole on top of it. These Bomb-Rocks will explode shortly after placement making this its most dangerous attack. It will even walk on the ceiling to scatter Bomb-Rocks in a straight line before dropping down detonating the rocks with its vibrations. However, if you have a squad of Goo Pikmin then you can disarm the Bomb-Rocks and use them yourself. If you feed the Tarantuar these rocks it will explode and flip over revealing a glowing blue pulsating area to attack with Pikmin before it closes this area shaking off everyone including Goo Pikmin. Furthermore, the venom does nothing to White Pikmin so having a squad of those two types would work out the best against this fight.

It drops the Data Box when defeated worth and gives you the ability to gain the upgrade to head to the Chilling Frontier.

Ultra-Spicy Differences
When doing its rolling attack it will cause rocks to fall when it hits a wall, it also does a new attack where it ricochets across the arena as a ball after being fed a Bomb-Rock before crashing into a wall and revealing its weak spot.

Trivia

 * The Data Box resembles the Smartphone.
 * inspired the name of this creature.