These are the bosses found on Victoria Island, the first continent where bosses are located. Every main town on Victoria Island now has a boss associated with it, with the exception of Nautilus Port, which currently has no monsters.
Lith Harbor Boss
Found at "The Thicket Around the Beach III" near Lith Harbor. Available in Korea,Japan,China and Taiwan versions.
Found at "Hidden Street:Someone Else's House", directly accessible from a secret path in the town of Henesys. It is one of the oldest bosses in the game.
Jr. Balrogs are found at the Cursed Sanctuary at the end of the Ant Tunnel Dungeon in Sleepywood. It, too is one of the oldest bosses. Zombie Mushmom is accessible from a map located off of Ant Tunnel Park called "Grave of Mushmom". It is slightly stronger than the ordinary Mushmom, and is one of the few Undead bosses.
Crimson Balrogs sometimes appear on the Ship from Ellinia to Orbis, or vice versa. Crimson Balrog is a flying enemy that travels in pairs and raids ships trying to carry passengers or cargo between Ossyria and Victoria Island.
The three colored King Goblins are located in Korean Folk Town, which is beneath the Helios Tower in Ludibrium and also links to Aqua Road beneath El Nath. They are summoned via special items.
These bosses are found in Leafre. They drop an item that is crucial to completing the fourth job advancement. Leviathan is an Area Boss which was added in KoreaMS that spawns in its own map, the Valley of Leviathan.
The boss of Mushroom Shrine is, fittingly, the most powerful Mushroom monster in the game, and also one of those with the spawn of 23 to 48 hours. It also has an outrageous avoidability of 60, making it near impossible for low accuracy players to even land a hit.
The Yakuza are the Japanese version of the Mafia. Found in Zipangu's Showa Town. Bodyguard A will transform into Bodyguard B and subsequently into The Boss when killed, and are the most powerful bosses in most versions of MapleStory.
Each player must beat their job's trainer to complete the third job advancement. These can only be accessed by players on the Third job test, through a hidden map accessed by a portal to another dimension.
Pianus is found at the Cave of Pianus through 'A Grave of a Wrecked Ship' at Aqua Dungeon. Go to a glowing doorway to enter 'A Dangerous Cave', which, at the end, you'll find Pianus, who spawns every 10 hours. If the Right Pianus isn't killed in 10 Hours the Weaker Left Pianus will spawn. MapleSEA recently released this description of Pianus:
"A heavenly fish who had once enjoyed the life of immortality, was banished into the world of MapleStory for eating up his friend simply because he was famished. Thrown into The Cave of Pianus, he is all alone, by himself, and would occasionally project an image of himself to relieve his loneliness."
Pianus can attack with a laser beam and a 10 ton metal block. He is also known as the Doom Flounder.
The Papulatus, and related forms, are all located in the last map of Ludibrium's dungeon, The Clock Tower, called "Ludibrium: Deep Inside of Clock Tower". MapleSEA recently released this description of Papulatus:
"Papulatus Clock Boss is an evil monster who hogs the Time Sphere and likes to steal the power in Ludibrium. With him around in the Clock Tower, Ludibrium will never enjoy the peace and harmony they once had."
Papulatus is a monster from the Maple World's parallel dimension. It entered through a crack in the dimension caused by Ludibrium's failing power supply, the Time Sphere, with several other monsters. The Time Sphere is made by mixing Tachions and Mysterious Powder, which is Papulatus' energy source as well. Papulatus contaminates these Tachions, draining the Time Sphere's power. Some of the other monsters that followed Papulatus through the Crack are carrying pieces of it, which are needed to seal the hole. Once the pieces have been acquired from these monsters, namely Gigantic Spirit Viking and Grim Phantom Watch, the crack can be repaired, causing Papulatus' escape route to be blocked and driving it into the open. Once this occurs, players can finally confront the monster that is disturbing the Maple World and end its leeching. However, once Papulatus has been defeated, there is still one last task: Eliminating the evil force that still remains in the contaminated Tachions. The only thing that can destroy such a dark aura is the fires of El Nath's volcanoes, so the Dark Tachions must be taken there. After all this, Ludus Lake will finally be able to return to normal.
Approach Mr. Bouffon at Path of Time in Ludibrium. He will let you know how to get to Papulatus Clock Boss.
Papulatus attack with lightning bolts, a blast of flame and by chances turn players HP and MP to 1. It can also dispell everyone on the map, causing deadly situations for low hp classes.
Zakum, one of the most powerful bosses released in most versions of MapleStory, Is located in the Dead Mines of El Nath, one of the main dungeons. Highly coveted by those above Level 100 for the elusive Zakum Helmet. In a 4th Job Advancement quest, it tells the story of Zakum's rise.
Zakum was a spirit sealed in a tree deep in the mines of El Nath's volcano. A mining town that once existed nearby eventually discovered this tree, and began worshiping it. They built an enormous statue in tribute to the tree. The evil spirit of Zakum seized the opportunity and possessed the statue, killing everyone in the town. Zakum now rests deep in the lava caves, waiting for powerful players to challenge his might.
Horned Tail is the most powerful Boss in the game. It drops a powerful necklace called the Horned Tail Necklace, which adds massive amounts to every stat. Located deep in Leafre, in the Cave of Life. Several Leafre quests reveal what has occurred to bring Horned Tail into battle.
The forest of Leafre is protected by the Nine Spirits dragon, a kind and gentle creature. The Nine Spirits Dragon has set up a barrier which shields the forest from evil. Unfortunately, the barrier gradually weakened over time, and this allowed the enormous beast, Horned Tail, to slip through. Horned Tail brought with him the Wyverns, which normally reside in a swampy land far to the north. This group of evil dragons began their assault on the town, almost entirely wiping out the Dragon Squad, a team of human fighters sent to defeat Horned Tail. During this battle, Horned Tail took the egg of the Nine Spirits Dragon and hid out deep in the Cave of Life. His evil power is so great that it has even gained the power to corrupt the other monsters, turning them pitch black. Now, the strongest players must band together to defeat this cruel dragon, save the Nine Spirits Dragon Egg, and protect Leafre once and for all.
As part of an event in Korean MapleStory and Global MapleStory, false bosses were implemented on some maps for a short time. Additionally, in KoreaMS, MapleSEA, and JapanMS, these bosses could be summoned as part of different event involving the collection of fireworks. These bosses are significantly weaker and have less HP than their normal counterparts, most doing a mere 1 point of damage to high-leveled characters. They also drop several cakes upon defeat.