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There was only one known Hidon in existance and it was destroyed by Mario and his band of adventurers while searching for parts of Star Road for Smithy. Some believe the monster was put on the Sunken Ship to protect the treasure of the sailors who lived on the ship before it was sunk by King Calamari.
Attack Pattern: Hidon is disguised as a Treasure Chest somewhere on the Sunken Ship. He can release four tiny Goombettes that will aid him in battle, and he has a variety of powerful attacks. His worst are Flame Stone and Carni-Kiss which cause lots of damage to one character. Static E will cause average damage to the whole party. Hidon will also counter regular attacks. He will keep spitting out more Goombettes if you defeat them.
Basic Strategies: Most magic attacks don't work really well against Hidon, but he will use a powerful counter-attack if you use regular ones. Jump and Geno Beam are good, and Poison Gas is decent.
Advanced Strategies: The best team is Mario, Geno and either Mallow or the Princess. Mallow or the Princess heal wounded party members and fight the Goombettes while Mario and Geno focus on beating Hidon with Jumps and Geno Beam. If Mario uses Super Jump, you should be able to beat Hidon in two or three rounds, then you can easily finish off the Goombettes. Mallow can try to use Thunderbolt on the enemy party, it won't hurt Hidon, but it will weaken the Goombettes. If Bowser is in the party, he could try using Poison Gas, but otherwise he should fight the Goombettes Hidon throws out.
Hidon's regular attack involves a Piranha Plant popping out of his mouth and biting rapidly four times. Try to press A on the last bite to block the attack.
