Jefe

• Burrowed Spikes

• Bite

• Thrown Spikes

• Gloaming Wildwoods: Lair of the Snarbolax
• Mission 3-2 Shadow of the Beast

•  Frumious Fang(1-4)

Said to be a massive beast draped in living shadows, the Snarbolax enjoys toying with its prey before delivering the final blow. It is advised that only knights who have mastered Tier 1 take on this formidable beast as those who have entered unprepared have never returned!

• Tackle

• Spin (Phase 2)

• Repel

• Absorb Royal Mini

• Royal Jelly Palace: Battle Royale
• Mission 5-2 The Sovereign Slime

•  Jelly Gem(1-4)

The Royal Jelly is everything an unruly king is. He summons many of his Royal Minis to attack knights, while squishing many of these same Minis. He can also heal once he takes damage.

• Energy Bullets

• Small Rockets

• Large Rockets (Phase 2)

• Laser (Phase 3)

• Ironclaw Munitions Factory: The Roarmulus Twins
• Mission 6-2 Built to Destroy!

•  Bark Module(1-4)

The Roarmulus Twins are two very large Gun Puppies that would like nothing more than to blow you up.

• Mace

• Charge

• Falling Debris

• Bullets (Phase 2, 4)

• Flame Souls (Phase 3, 5; passive)

• Fire Snake (Phase 5)

• Firestorm Citadel: The Throne Room
• Mission 9-3 The King of Ashes

•  Almirian Seal(1-4)

Lord Vanaduke was the young and determined king of the Almirian Empire before he was driven to madness and transformed into a grotesque monster.

• Burrowed Spikes

• Bite

• Thrown Spikes

• Shadow Lair: Gloaming Wildwoods: Lair of the Snarbolax

•  Frumious Fang(2-8)

The Gloaming Wildwoods has been infected with a poisonous miasma that has transformed the Snarbolax into the Rabid Snarbolaxes.

• Tackle

• Spin (Phase 2)

• Repel

• Absorb Ice Mini

• Shadow Lair: Royal Jelly Palace: Battle Royale

•  Jelly Gem(2-8)

The Royal Jelly Palace has frozen over and its king usurped by the true heir to the slimy throne, the frigid Ice Queen.

• Energy Bullets

• Small Rockets

• Small Red Rockets

• Large Red Rockets (Phase 2)

• Red Laser (Phase 3)

• Shadow Lair: Ironclaw Munitions Factory: The Roarmulus Twins

•  Bark Module(2-8)

The Ironclaw Munitions Factory has begun creating fiery weapons and improved upon its ultimate weapon in the form of the Red Roarmulus Twins.

• Mace

• Charge

• Falling Debris

• Bullets (Phase 2, 4)

• Flame Souls (Phase 3, 5; passive)

• Fire Snake (Phase 5)

• Shadow Lair: Firestorm Citadel: The Throne Room

•  Almirian Seal(2-8)

A powerful curse has overtaken the Firestorm Citadel, transforming its hordes and led by the mighty Darkfire Vanaduke.

• Flamethrower

• Balefire

• Mission 1-4 Crossing The Chasm

• None

Evil Gremlin Schemer Razwog was thought to be the one who sent a batallion of Retrodes at the Rescue Camp and is the first Gremlin the player must fight. Even though it is not certain that he is technically a Scorcher, he looks and behaves very similarly to them.

• Charge

• Goo Grenades

• Explosion

• The Collector: Camp Crimson

The Collector, a large construct created by Gremlins. It collects and imprisons Battle Sprites that have fallen into the Clockworks.

• Sword Combo

• Sword Slam

• Revive + Energy Blast

• Shadow Orbs

• Shadow Spikes

• Mission 9-1 The Silent Legion

• None

Arkus, a fallen ex-knight of the Spiral Order. Despite the fact that he seems to have transformed into a Trojan, he retains the attack style of a spiral knight. A few aspects differ him from a regular T3 Trojan:

• Extraordinary weapon reach - this Trojan's attacks seem to be able to reach twice as far as any other's.
• No immunity to frontal damage - you can hit him from any side, but the frontal damage is substantially reduced.
• Wider array of possible attacks - a normal Trojan has only three attacks available. This one has five.
• No abrupt dashing - Arkus is not capable of dashing, unlike other Trojans. He is also incapable of buffing his attack power.
• When he is defeated, he "revives" like a regular Spiral Knight; however he can only do this twice, resulting in the fight taking place in 3 phases. Each time he revives, the crystal on his black glows more fiercely, two more Shadow Orbs encircle him and fiend family monsters appear to aid him (some Beryl Greavers and a Silkwing).

• Attack Buff

• Mace

• Ice Block Trail

• Heart of Ice: Amu-Sol

• Swordstone
• Phial of Phear
• Trojan Horseshoe
• Red Shard

The final mini boss of Heart of Ice. A mysterious Frozen Trojan intending to freeze Cradle with Everfrost's power resource. The boss consists of three phases, during every phase Tundralisks will spawn. He uses a mace like Lord Vanaduke that will create a trail of breakable ice, causing the Freeze status to anyone who gets in the path of it. His attack buff also knocks back knights and creates blocks of ice. He is supported by a lot of cold monsters.

• In the first phase he spawns two invincible Perma-Frostifur. When he's dealt enough damage, Maulos will surround himself with a block of ice, will not move and will be very easy to hit.
• In the second phase he spawns around four Frostifurs and when hit enough will again surround himself with ice. Frozen Souls come to help Maulos in this part of the battle.
• In the third phase he spawns two to four Layoafers. He is finally defeated when he takes enough damage.

A larger, ice-blue Trojan that has no directional attack immunities.

• Beam

• Tentacle

• Shield (Passive)

• Ghosts in the Machine: Iron Hulk

• None

The final mini boss of Ghosts in the machine, Large Battlepod fixed to the chamber with no more info about it, 2 monster spawns that change between Surgebots, Volt Knights and Voltrodes, 2 files of 2 shock balls orbit around him. Consists in 3 phases:

• First phase only has 1 spawn ,up to 2 wires break the ground and try to hit the players and fires 2 lasers beams in a random direction. After 4 laser fires its shield will break and give opportunity to him it.
• Second phase has 2 spawns and up to 4 wires and 4 lasers at once
• Third phase has up to 6 wires and fires 6-8 lasers at once. Its eye gets redder with Danger symbol on it.

• Hammer Smash

• Hammer Blast

• Spin Attack

• Bombs

• Rocket Dash

• Grand Arsenal: Engines of War

• Tier 1: Fractured Seerus Mask Fragment (1) (gained at the next level)
• Tier 2: Flawed Seerus Mask Fragment (1) (gained at the next level)
• Tier 3: Perfect Seerus Mask Fragment (1) (gained at the next level)

Warmaster Seerus is a member of the Crimson Order who owns the Grand Arsenal. He is the mastermind behind the Roarmulus Twins and countless other gremlin war machines. He wields the Warmaster Rocket Hammer, a powerful elemental weapon.

• Bite

(Bite cannot be blocked and ignores the shield entirely.)

• Orbiting Bullets

• Cursed Ring
• Poison Smog
• Summon Black Kats

• Moorcroft Manor

• Ancient Page Tokens (x6)
• Black Kat Cowl (User of Book of Dark Rituals only.)

A massive Grimalkin-like creature, summoned by the Konjuring Kat's dark ritual. He was the one who opened the Book of Grey Feathers, causing the Kataclysm. This event not only destroyed the Owlites, but also destroyed the Kat tribe as well. He is the unluckiest Kat to have ever lived.