These bosses appear in game modes like Adventure Mode and Boss Rush.


Kings are bosses from Magic Touch: Wizard for Hire. They have magic scepters that they use to blast lightning at fighters. They wear armor that can't be damaged; the only way to defeat them is by popping all of their balloons, which are only vulnerable when the king is attacking. When they aren't attacking, they erect a magic force field around their balloons. They can also summon purple and golden knights to attack fighters.


Scepter Swing

Scepter Swipes

Scepter Slam

Lightning Blast

Chain Lightning Blast

Web Lightning Blast

Triple Lightning Blast

Purple Knight

Golden Knight

The Machine

The Machine is a giant robot from Test Subject Complete. It has two phases; the first phase it hangs on the ceiling and fights with mostly projectiles; the second phase it detaches itself and transforms into battle mode, in which it uses more powerful attacks.


Phase One-

Firing Laser

Laser Sweep

Missile Blast

Laser Storm

Phase Two-

Drill Rush

Drill Slam

Chopper Spin

Leg Sweep

Microbot Deploy

Bomb Launch

MewTube Boss

MewTube Boss is the less successful brother of Nitrome Boss. He fights from his Kitty Copter and uses all sorts of crazy cat-themed attacks.

For MewTube Boss's attacks, see SSN2: Classic Mode#MewTube Boss.

Demon Overlord

The demonic king of the shadowy monsters that invaded the Warlock's village, the Demon Overlord seeks to spread darkness around the world. He uses dark magic and powerful melee attacks to fight, and even summons demonic bodyguards to attack fighters.


Piercing Blackness

Dark Orbs

Shadow Blast


Demon Sword

Demon Axe

Demon Spear

Demon Summon

Void Trap

Void Blast

Visceral Blade

Flame Blitz

Rage Blast

Heat Wave

Corrupted Cubot

Nitrome Boss's Cubot has gone haywire and is now rogue, destroying anything in its path! It uses its arm cannon to fire bullets and can fly around with its rocket boosters. It also has a Charomat installed in it that can spawn enemies to attack fighters.


Bullet Blast

Flying Barrage

Armageddon Attack

Bullet Spray

Orange Nose Enemy Spawn

Cluster Bomb

Big Hat Pirate

The Big Hat Pirate is out for a bounty! He has three phases; first he fights from aboard his ship, from which he fires cannons and sends out parrots to attack fighters. Phase Two Has him hop off his ship to fight you one on one; he throws bombs and explosives of all kinds. Once he's defeated there, phase three begins. He returns as a zombie pirate and his attacks are more powerful now.


Phase One-

Cannonball Fire

Cannonball Barrage

Parrot Attack

Anchor Drop

Phase Two-

Cherry Bomb

Boulder Roll

Gunpowder Barrel Roll

Parachute Bomb

Pieces of Eight

Phase Two-

All Phase One Attacks

Tidal Wave

Voodoo Doll

Seagull Attack

Phase Three-

All Phase One and Two attacks (buffed)

Omega Dragon

The robotic dragon-like general of the Triclopian army, this super-weapon is armed with bullet-cluster cannons and a super laser designed to level entire cities and wipe out opposing forces. It has several new abilities when you encounter it in SSN2.


Bullet Cluster

Bullet Spreader

Bullet Barrage

Super Laser

Dragon Swoop

Dragon Spin

Dragon Slam

Bullet Net

Dragon Throw

Fire Breath

Lightning Whirl

Dragon Wave

Armored Knight

The dark, armored knight that guards the Tiny Castle has grown much larger, and now has some new weapons and methods of fighting.


Claw Swipe

Claw Fury

Claw Storm

Flaming Hog Throw

Flaming Hog Roll

Flaming Hog Rain

Ground Slam


Fireball Scramble

Homing Fireballs

Fire Beam

Flame Sword

Flame Columns

Orange Enzyme Boss

The Orange Enzyme Boss is a monster taking on a ghostly form. It uses strong attacks, projectiles, and summons minions to help it fight in its appearance in Test Subject Swap, and does the same in SSN2. *Credit for this boss/character and all of its original attacks go to Test Subject fan and Klemen702.


Ground Pound

Powerful Pound

Summon Throwing Orange

Throw Minion

Goo Grenade

Goo Splitter

Goo Cluster

Goo Roll


Double Punch

Grab and Squeeze

Grab and Hurl

Gooey Yo-yo Attack

Chomp and Slam

King Cloud

The evil king of the Dark Creatures mounted on a sinister cloud monster. He attacks with lightning and fire and can summon Bats and Dark Creatures to fight.


Fire Lob

Fire Bomb

Lightning Strike

Lightning Cone

Lightning Area

Lightning Splash


Rain Attack

Dark Creature Spawn

Bat Spawn

Dark Creature Throw


An evil robot that commands an army of robots to dominate the world. She remains stationary but has many means of offense to defend herself. She can fire lasers, bombs, rockets, and even deposit robotic underlings to do her bidding.


Rocket Blast

Bomb Launch

Laser Shot

Laser Burst

Acid Mine

Deposit Robot

Acid Blob

Acid Pour

Acid Fountain

Acid Flood

The Behemoth

A monstrous, gigantic Cyclops responsible for kidnapping the fair maiden in Double Edged. He attacks in both Double Edged and SSN2 by throwing boulders, slamming his fists around, and spitting up Skeletons that fight players.


Skeleton Spit

Skull Spit

Earth Slam

Fist Pound

Giant Punch

Behemoth Smash

Boulder Toss

Boulder Storm

Stage Bosses

These bosses appear on a stage and when defeated can benefit the fighter that defeated it in some way. They have less attacks than fully fledged bosses and only appear on their respective stages.

King Meka

Appears on the Fat Cat World stage. Fires bullets and bullet clusters around the stage, safe spot is directly underneath him (best place to attack from). Easiest of the three bosses on the Fat Cat World stage. When defeated by a fighter, King Meka's bodyguards will focus their fire on other fighters.

King Cacta

The second boss on the Fat Cat World stage. Fires bullets in all directions and has harmful spines on its body. Safe spot is below and to the right of him. When defeated King Cacta will release bees that home in on other fighters.

King Shroom

The third boss and hardest boss on the Fat Cat World stage. King Shroom shoots bullets in all directions and spawns off Tree Enemies to attack fighters. When defeated, King Shroom lets off poisonous spores upon dying that deal poison damage to other fighters for ten seconds.


Talos appears on the Ancient Greece stage, attacking by stomping around. He can burrow fighters he directly hits and damage fighters by making the ground quake. Weak points at his heels. Upon dying he releases a ton of Enemy Soldiers that swarm opponents.


Appears in the Robot Factory stage. Leaps around and fires toxic blasts. Upon being defeated, Bigfoot leaves and then later returns and sneak attacks an opponent to K.O. them.

Baron Battenberg

Appears on the Fortress of Steam stage in his Steam-powered Batter-Berger, spraying poison gas around the stage as he flies around. Upon being defeated, Baron Battenberg's Batter-Berger explodes and damages opponents caught in the explosion.

Maxwell Merlock

Appears on the Dr. Boshi's Base stage. Shoots bullets around and releases mines that home in on fighters. Upon being defeated he will electrocute and stun nearby opponents before dying.

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