List of characters in Soul Knight.
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- Acquired Poison Immunity: His 6th upgrade passively grants him immunity to poison, both the gas and the debuff.
- Bubble Gun: The Dormant Bubble Machine shoots several short-range poison bubbles. Upgrading it will add some more bubbles and increase the critical chance.
- Elemental Powers: His second ability replaces his poisons with elemental potions that can cause either poison, freezing, or burning.
- Jack of All Stats: He's one of the more balanced classes.
- Master Poisoner: His ability has him throw a grenade that explodes into a slowing poison zone that deals Damage Over Time. With his Level 5 Upgrade, he can fire 3 of these at a time.
- With his level 6 upgrade, he gets a passive perk that gives him Acquired Poison Immunity and makes all his poisons (both from his ability and weapons) even deadlier.
- His unlockable skill allows him to throw down a bottle of poison, ice, and fire at the same time.
- No Biochemical Barriers: With the exception of crates, his poison can damage anything, be it goblins, robots, skeletons, aliens, etc.
- Random Effect Spell: His third skill has him concoct a potion using up to 4 ingredients, randomly picked from a pool of 5, to heal him and/or boost his stats for 8 seconds.
- Leaves boost his movement speed.
- Chili Peppers boost his rate of fire.
- Peaches provide armor regeneration.
- Mushrooms and Roots recover energy and HP, respectively.
- Attack Reflector: At level 6, he passively gains a perk that allows him to reflect enemy bullets with his melee attacks.
- Charged Attack: The Blood Blade can swing multiple times when charged. Upgrading it lets it slash three times.
- Critical Hit Class: Is tied with Rogue for the highest crit chance, making him great with weapons that have on-crit effects.
- Difficult, but Awesome: Like Rogue, his low stats and finicky ability make him very hard to play. Play him right, however, and you have arguably one of the deadliest classes in the game.
- Doppelgänger Attack: His second ability has him summon a clone of himself, that mirrors his attacks.
- Katanas Are Just Better: His starting weapon, the Blood Blade, is a crimson-red katana. In older versions, if you meet the Assassin during a run, he will assist you with a regular Katana for the current floor.
- The Berserker: I mean, come on.
- Lightning Bruiser: While he has poor armor, his high health, skills allowing him to reduce or dodge incoming damage, and increased rate of fire can allow him to become this.
- Shockwave Stomp: His third skill does this when landing.
- Spam Attack: His first skill briefly triples his attack speed. Upgrades let him start with a buff that boosts his usual fire rate by 20%.
- Spread Shot: His second skill works as this, tripling or quadrupling the number of hits dealt at the cost of halved damage per hit and worse accuracy.
- Unlockable Content: His third skill unlocks by forging it with eight "Leap" skill Torn Pages, which are a once per battle possible drop of the King Snow Ape.
- Three-Strike Combo: The Boxing Gloves makes him thrust forward, doing two punches and an uppercut if holding the attack button.
- Bad with the Bone: His main weapon is a bone.
- Mon: Type 1. His first skill summons two wolves to fight for you. A bear in his third skill.
- Green Thumb: His second skill spawns 6 vines which shoot bullets in each direction.
- Status Buff: At level 6, his passive skill buffs the life of pets and followers NPC.
- Unlockable Content: His second skill unlocks by forging it with eight "Vine" skill Torn Pages, which are a once per battle possible drop of the Varkolyn Leader.
- Stock Femur Bone: The Crispy Bone, a bone which doubles in function as melee and throwable.
- Action Girl: An elven archer who is as competent as the rest of the heroes.
- Energy Bow: The Ancient Bow shoots glowing arrows that can stun enemies. Upgrading it boosts the damage and critical chance.
- Elemental Powers: Her Guardian Elvens is the [[Fire, Water, Wind]] respectively. Fire Elven lands with a fire pool and shoots fireballs; Wind Elven land with a green wave that pushes away all foes shoots arrows like Windforce, Water Elven heals for 1HP and 5 Energy when summoned and heals for 2 Armor and 5 Energy
- Green Thumb: Her Level 5 Upgrade lets her generate a barrier of vines around her that can take one hit.
- The Straight and Arrow Path: Her ability causes her next attack to fire a large, explosive arrow regardless of whether she's using a bow or not.
- Ambiguously Human: He seems to have a water tank for a head, and most of his alternate costumes make him even more robotic-looking.
- The Turret Master: He can deploy a gun turret to assist him. When fully upgraded, the turret will also fire missiles.
- Playing with Fire: At level 6, he gets a passive buff that gives him full immunity to fire, resistance to explosions, and boosts his own fire damage.
- Irony: He gets the Fire Buff, but his starting weapon is the H2O.
- Making a Splash: The H2O shoots a burst of three bullets like an SMG. Upgrading it adds an extra bullet to each burst.
The starter class immediately available for everyone. The Knight has balanced stats and moderately high health.
- Dual Wielding: He can dual wield a pair of melee weapons with his unique skill, allowing him to block bullets, cut down his enemies rapidly or propel forward with thrusting swords.
- Guns Akimbo: His skill allows him to dual wield any weapon for a short amount of time. When fully upgraded, the duration of the skill increases whenever he kills an enemy. Even the Bad Pistol can become very deadly in the hands of the Knight.
- Taken to ridiculous levels with his unlockable skill, which allows him to wield every weapon he's currently carrying at the same time. This allows for ridiculous combos, like wielding a shotgun and a sniper rifle simultaneously, or using a melee to block bullets while firing back with an SMG of your own. Bonus points if you have the extra weapon slot upgrade.
- Jack of All Stats: The Knight has balanced stats and moderately high health, fitting for both mid-distance gunfight and aggressive melee combat.
- Kill Streak: His Level 5 Upgrade allows him to extend the duration of his Dual Wield every time he kills an enemy. If you can rack up enough kills quickly it can be extended almost indefinitely.
- Lightning Bruiser: When using the Rapier in conjunction with the Dual Wield skill, he can lunge further than anyone else and slice through enemies and bullets effortlessly while shrugging off the hits.
- Mighty Glacier: He has a relatively high health and armor that allows him to soak several hits and gains a passive that prevents him from receiving additional damage whenever his armor break. With the right weapon he can also deal heavy damage. However he doesn't have any mobility outside of his skillset.
- Parrying Bullets: While everyone can parry bullets with melee weapons, the Knight has the aforementioned Dual Wield skill, allowing him to swing the weapons twice, making him more effective on blocking bullets. The Meat in particular has the fastest swing among all melee weapons. When it's used in conjunction with the Knight's Dual Wield skill, it can fill in the gap between each swing and shrug off bullets in rapid succession.
- Random Effect Spell: His third skill adds random elemental effects to most hits he deals. Paired with a suitable weapon, he can easily flood the screen with explosions and poison/fire pools.
- Starter Equipment: The Bad Pistol is a basic pistol that shoots at an average pace. Upgrading it into the New Pistol boosts its damage, and gives it a chance to fire a spread of bullets.
- Crippling Overspecialization: Her first and second skills. Her first skill is great at killing bosses, but bad against multiple hands. On the other hand her second skill is excellent against crowds but unspectacular against bosses.
- Damage-Increasing Debuff: Her first ability functions as this when upgraded, increasing damage dealt by 2 per hit.
- Dem Bones: Enemies killed while under the effects of her upgraded second ability will spawn skeletons to aid her.
- Minion Master: All three of her abilities allow her to summon allies. Ghost Hands, Omen Beetles, Revived Foes, your choice.
- Necromancer: Exactly What It Says on the Tin
Unlocked by completing 10 missions from the Task Board.
- Damage-Increasing Debuff: His second skill marks an enemy, giving his attacks an increased critical rate against them. Upgrading it at the Mentor will increase the damage dealt by 25%.
- Death from Above: His third skill summons a plane to rain bombs on enemies.
- Homing Projectile: His second skill turns most weapons into this.
- Deflector Shields: His Energy Shield allows him to temporarily negate all damage taken.
- Energy Absorption: His Level 5 Upgrade allows him to transform damage absorbed by his Energy Shield into energy for his weapons.
- Epic Flail: The Sacred Flail can be charged and swung like a hammer. Upgrading it boosts its fully-charged damage and critical chance.
- One-Hit-Point Wonder: The Paladin starts off with exactly 1 HP (which can be boosted to 2 as he levels up). This is mitigated by his extremely high armor of 8 and his Energy Shield.
- Stone Wall: Paladin has a crit chance of 0 and an ability solely dedicated to defense. That being said, his defenses are so high, what with his enormous armor stat and Energy Shield, that not much will be able to even damage him.
- Action Girl: Despite what her title implies, the Priest is female.
- Heal Thyself: Her special ability creates a zone that heals all allies within. With her Level 5 Upgrade, the zone can even heal Armor.
- Light 'em Up: Her starting weapon, the Wooden Cross, summons pillars of light to damage multiple enemies at a time. Upgrading it boosts its damage, critical chance and number of pillars. Also, her Sound of Paradise costume summons a pillar of light on her, but this one is purely cosmetic.
- White Mage: Can use her powers to heal herself and allies, but has poor combat abilities to compensate.
A player character unlocked via repairing with the Engineer.
- Drone Deployer: Can temporarily summon a group of drones with his second skill.
- Energy Weapon: His level 6 buff makes lasers wider and more likely to hit enemies, and also affects his skill.
- Guide Dang It!: The game doesn't tell you how to unlock the Robot directly. You only get vague hints in the form of the Damaged Robot and its message saying "Maybe someone could fix it". That someone being the Engineer, and even if you bring him over, you still need 20 Parts and Batteries to actually repair it.
- Kill Sat: The Satellite Floating Gun fires a laser, but can be withdrawn to split into two supporting weapons. Upgrading it boosts its damage considerably.
- Shock and Awe: His skill "Electrical Overload" unloads continuous electrical shock on surrounding enemies.
- Stone Wall: He has a crit chance of 0 and the second highest armor stat after the Paladin, with a below average health.
- Critical Hit Class: He has an abnormally high crit rate which allows him to use weapons that proc status effects on crit very well. He also gains further increased crit chance on his first shot after rolling if you get his Level 5 Upgrade.
- Difficult, but Awesome: His low stats make him extremely unforgiving to play, and even the slightest mistakes can spell instant death. However, his Dodge allows him to avoid almost all damage if played right and his high crit chance can synergize well with certain weapons to make short work of most enemies and bosses.
- Fastball Special: A sprite of him rolling is one of the projectiles that can be launched by the Fantastic Gun.
- Flash Step: His second skill allows him to perform these, slashing at foes as he passes by. Unlike his other skills, he will always dash towards an enemy if he is aiming at them, making it harder to use for dodging attacks.
- Fragile Speedster: All of his skills can help him dodge attacks and hit decently hard. It only takes a few hits to kill him though.
- I Call Them Jack and Mary: His throwing knives.
- Unnecessary Combat Roll: His first skill allows him to roll forward and dodge bullets during the roll. His third skill is similar, but allows him to roll for longer, ending in a Charged Attack that damages and freezes enemies, at the cost of a much longer cooldown.
- Attack Reflector: His second skill does this, though it doesn't always send projectiles directly the way they came.
- Shock and Awe: His upgraded third skill leaves a damaging trail of lightning bolts as he moves. His starting weapon can also summon lightning when upgraded.
- Storm of Blades: His first skill summons a swarm of swords to block bullets and damage enemies.
- Counter-Attack: His upgraded third skill releases a shockwave at the end of its duration, increasing in power based on how much damage was absorbed using the skill.
- Dungeon Bypass: When appearing as an NPC, he can open a portal to let the player skip the current floor. Even bosses can be skipped this way.
- Life Drain: His first and second skills heal him on successful hits.
- Our Vampires Are Different
- Squishy Wizard: Middling HP and armor, with low unarmed damage, but his skills give him both healing and offensive potential.
- Unrealistic Black Hole: His second skill summons one of these.
- Cigar Chomper: Carries a cigar in his mouth whenever he's transformed.
- Extreme Omnivore: His third skill lets him eat any non-boss enemy. This includes stone statues and robots.
- Heal Thyself: All three of his skills let him recover HP in some way.
- Berserk restores his HP to 50% if he was below that when activating it, or 100% if he was below 25% HP.
- Blood Thirst lets him recover HP on successful hits when sufficiently charged.
- Devour lets him eat enemies to recover HP.
- Kill Streak: His third skill, when upgraded, gives him a stacking buff with every enemy he eats. Eating resets the buff's duration, but all stacks are lost if it runs out.
- Lightning Bruiser: His first and third skills, when upgraded.
- Berserk grants him a defense boost, and replaces his weapons with a claw attack that can both deflect projectiles and close distance between himself and foes.
- Devour, upon eating five enemies, grants Werewolf 50% faster attack speed, 25% faster movement speed, and a smaller defense boost.
- Mechanically Unusual Fighter: Has the highest base HP out of any playable character, but the lowest armor as well. This, combined with all of his skills giving him some form of healing, gives him a vastly different playstyle from the rest of the cast.
- One-Hit Kill: His third skill delivers this to any non-boss enemy, though enemies surrounding the eaten target only take minor damage.
- Our Werewolves Are Different
- Action Girl: Despite what her title implies, the Wizard is female.
- Chain Lightning: Her ability strikes the nearest target with a stunning lightning bolt, which then spreads to up to 4 more targets. With her final upgrade, the damage actually increases with each jump.
- Elemental Powers: With her level 6 buff, weapons with elemental effects will deal double damage on critical hits.
- Her second ability replaces her chain lightning with an attack that sends three waves of ice spikes in a conical spread towards the enemy she's currently targeting. These will freeze enemies and go all the way until they hit the room's surrounding wall.
- Her third ability summons up to 6 fireballs that rotate around her, damaging enemies and blocking incoming projectiles.
- Glass Cannon: The Wizard has decent armor, high energy and access to a deadly stunning ability with a short cooldown, but only has 4 HP to start off with.
- Orbiting Particle Shield: Her third ability.
- Projectile Spell: The Code shoots Homing Projectiles at enemies. Upgrading it boosts its damage and gives it a chance to fire an extra shot.
- Shock and Awe: Her first ability in a shtick.
- Bare-Fisted Monk: His starting weapon, the Qian-kun Punch, simply enhances his unarmed attacks when equipped.
- Brainwashed and Crazy: According to his explaination, he came from the Far East to kill the monsters. Let's just say he got a bit too carried away...
- Defeat Means Friendship: Unlocked by freeing him from the evil spirits from The Origin. He'll give the player the Qi Buff
- Guide Dang It!: The game never tells you how to perform his Kamehame Hadoken, or how certain buffs will enhance his moveset.
- Lightning Bruiser: Average health, above average armor, with high unarmed damage and a skill that provides both burst damage and mobility.
- Mechanically Unusual Fighter: Rather than a normal melee swing, his unarmed attack is a three-hit combo (four-hits with the combo buff) that does relatively high damage per hit, but is noticeably slower. Performing a specific sequence of attacks (punch 2x -> uncharged Skill -> punch 6x -> charged Skill) allows him to fire a continuous beam that deals heavy damage, but leaves him vulnerable.
- Non-Indicative Name: Less Blow You Away and more Ki Manipulation.
- Assist Character: Her second skill, Helping Hand: Eligos, summons a large demon to follow behind her, supporting her with melee attacks. Using the skill when Eligos is already present causes him to perform a powerful Dash Attack.
- Damage Over Time: Her first skill summons a ring of fire that damages nearby enemies. Up to three summoned minions will be sacrificed to increase its damage and range.
- Limit Break: Her second skill, after charging up by sacrificing 99 summoned demons, can trigger a large explosion that deals massive damage. Sacrificing more demons when already charged will further increase the damage of the blast.
- Minion Master: When upgraded, enemies she kills spawn demons to assist her in battle.
- Wolverine Claws: Eligos attacks with these.
- Dig Attack: Her skill. Both the initial burrowing animation and emerging create quakes that can stun enemies. Charging increases the damage and time she can spend underground.
- Geo Effects: In ice and fire biomes, her attacks fire additional icicles or fireballs, respectively.
- Lightning Bruiser: Average health, high armor when boosted by her starting buff, and starts with a melee weapon that can quickly close gaps between her and enemies. Her skill deals high damage, clears projectiles and provides invincibilty frames.
- Powerful Pick: Her starting weapon, the Gemmed Pickaxe. Upgrading it allows it to perform a Charged Attack that generates a shockwave.
- Shockwave Stomp: Both her skill and upgraded weapon can create earthquakes.
- Orbiting Particle Shield: His skill summons a circle of bombs that rotate around him, launching them at enemies once its duration expires.
Unique characters unlocked through crafted items, obtained by fully upgrading other characters and paying an exorbitant sum of gems.
- Bragging Rights Reward: With the cost needed to unlock most of them, they can be considered this, as most players will have played through the game many, many times by the time they're unlocked.
- Secret Character: All of them are unlocked by crafting their respective items and bringing those items into the dungeon.
- Armored But Frail: With 2 HP and 3 armor, he's the most fragile character on the roster. His unique passive buff offsets this by making him invulnerable literally half the time.
- Energy Beings: Appears to be composed of dark purple aura.
- Glass Cannon: His starting weapon gives him some of the highest damage output of any character, but he can barely survive any successful hits.
- Mechanically Unusual Fighter: On top of the aforementioned fragility, he has nearly nonexistent energy reserves (21 when the average is 180), heavily limiting his choice of weapons even with boosts to his maximum energy.
- Time-Delayed Death: Non-boss enemies hit by his skill suffer a One-Hit Kill after eight seconds.
- Thinking Up Portals: The Dimensional Grip, which creates shockwaves that travel through walls and deal numerous hits to enemies they pass through, with zero energy cost. The Laser buff increases the size of the waves, dealing even more hits. Crafting it results in a much more space between each individual hitbox, greatly reducing its damage output.
- Fire, Ice, Lightning: The main elements they wield, both with their starting weapon and their skill. Their unique passive is simply the Fire and Ice buffs combined.
- Mask of Power: The Visage of Elemental Power, which summons elemental explosions directly on top of enemies. Charging increases its damage.
- Mighty Glacier: Elemental pillars summoned by their skill fire slowly, but can deal heavy damage per shot.
- Squishy Wizard: Below average health and armor, but has the highest base energy reserves in the game, on top of constantly regenerating energy.
- Assist Character: His unique passive summons a Great Owl to attack enemies.
- Guest Fighter: Added as part of the Dead Cells crossover.
- Punched Across the Room: His skill, the Spartan Sandals, launches enemies on a successful hit, potentially damaging and stunning enemies they crash into.
- Frying Pan of Doom : The Vorpan, a melee weapon with a high critical rate and the ability to stun on hits, but uses energy with each swing.
Time Travelling Ninja
- Action Girl
- Highly-Visible Ninja: She is a ninja who wears white.
- Cool Sword: The Molecule Ichimonji. Every third slash it makes is a stab with massively increased range, making it exceptional at clearing enemy projectiles.
- Heroic Lineage: Heavily implied to be a descendant of the Assassin, as she recognizes him from a portrait of a family member.
- The Dividual: Consists of three separate operatives, all sharing a life meter.
- Fighter, Mage, Thief: Each of them specialises in a specific weapon type. Red focusing on melee, Blue focusing on magic, and Green focusing on guns.
- Morph Weapon: The S.O Firearm, which changes forms depending on which operative is active.
Royal KnightA knight who has the highest HP of all mercenaries, but can only use melee weapons. He can equip most melee weapons, especially swords.
Headgear HeroA masked man who wields a machine gun. He can equip pistols and rifles.
Mercenary InternAn armored soldier who wields a shotgun. He can equip shotguns and launchers.
BarbarQA dwarf-like barbarian who uses an axe. He can equip most melee weapons, except for spears.
Legendary AprenticeA masked, goblin-like figure who wields a staff. He can equip staves, bows, or spears.
SootsootA strange chef-like creature who throws status-inflicting bowls. He can equip throwing weapons and railguns.
Mad ScientistA strange, crowbar-wielding man who can be hired for free. However, there is a chance that he will attack you instead of joining your cause. He can equip most laser weapons.
TraderAn NPC that sells you items in shops found in the dungeons. He also appears in the Living Room, offering items for gems.
ScammerAn NPC found in the starting room of dungeons. When paid, he will remove your latest buff, allowing you to select a new one upon entering the next stage.
WeaponsmithAn NPC found within the dungeons. He sells a wide range of weapon enhancements that improve the performance of the weapon you're currently holding.
WaiterAn NPC who sells a single drink that, if purchased, grants you a unique buff that cannot be obtained anywhere else.
DrillmasterAn NPC who can be paid to train up mercenaries, improving their HP and letting them equip higher-grade weapons. Only ever appears if the player enters the floor with a living mercenary.
Mount MerchantAn NPC that sells mounts. He will be offering one mount out of your current available roster of mounts.
Mysterious TraderA strange NPC who sells extremely powerful items, ranging to extra buffs to top-grade weapons. However, unlike the other NPCs, his goods are purchased by sacrificing some of your max HP.
Other Living Room Characters
Stage 1 - Forest
- Combat Tentacles: Should you damage her enough, she will bring out four tentacles to keep you away from her.
- Evil Laugh: Lets one out when she Turns Red.
- King Mook: To Trumpet Flowers.
- Plant Person: She's a half human, half flower creature.
- Poisonous Person: Some of her attacks inflict Poison, and she can spawn toxic clouds on herself.
- Rare Random Drop: The Cannibal Plant, a unique multi-purpose gun that causes poison on crits. While it normally fires explosive orbs, holding down the fire button will cause it to transform into a shotgun.
- Death from Above: Can summon flaming meteors to rain from above and explode, causing huge damage and burning.
- Drone Deployer: Can summon energy orbs that rotate around him to deal damage.
- King Mook: To the various Goblins found in the level.
- Rare Random Drop: The Staff of Shooting Stars, a magic staff that causes meteors to rain down on the target to damage and burn them.
- Homing Projectile: Shoots homing arrows in its second phase.
- Ramming Always Works: In its second phase, it aggressively charges at the player to deal high contact damage.
- Rare Random Drop: The Agitated Trunk, which allows the player to mimic the Treant's charging attack, damaging foes and destroying projectiles/objects along the way.
- Elemental Powers: Its eggs randomly summon poison, ice bullets, flaming meteorites, and poisoned fire.
- Flunky Boss: Some of its eggs summon minions to assist it.
- Rare Random Drop: The Nirvana Cross, an unusable weapon which consumes itself to revive the player upon death.
Haunted Goblin Priest
A special, upgraded version of the Goblin Priest that replaces the regular 1-5 boss if you sacrifice enough weapons to the offering pools found throughout the level.
- Bonus Boss: A much harder Goblin Priest that you have to go out of your way to even encounter.
- Cut Scene: When entering the boss room, the Goblin Priest can be found performing a ritual to transform himself into his Haunted version before fighting you.
Stage 1 - Glacier
Snow Ape King
- An Ice Person: Can use bullets that freeze the player, and can also create homing eruptions of ice spikes.
- Cluster Bomb: He can fire a large snowball that explodes into more snowballs.
- King Mook: To the normal Snow Apes found in the prior stages.
- Shockwave Stomp: He can perform this. It will either cause a massive explosion where he lands or send out several lines of smaller explosions.
- Rare Random Drop: The Snow Ape's Longbow, a bow that creates homing trails of ice spikes every time it lands a critical hit.
- An Ice Person: Fires bullets that freeze players.
- Flunky Boss: Can summon hordes of snowmen to swarm players.
- Rare Random Drop: The Snowman Eagle, a pistol whose crits freeze enemies and summon a friendly snowman minion to attack foes.
Giant Crystal Crab
- Energy Absorption: Every now and then it will stop moving and enter a defensive stance where it can neither attack or be damaged. During this time, any hits it take will heal it by 4 HP instead of doing damage, meaning that careless players can suddenly find that the Crab has regenerated half its health back during that period.
- Giant Enemy Crab: A gigantic crystal crab that can summon crystal pillars against you.
- Impaled with Extreme Prejudice: Can summon crystalline spikes to skewer players.
- King Mook: To the Crystal Beetles found in in the prior stages.
- Stone Wall: Extremely resilient thanks to its hard shell, but rather lacking in the "overwhelming firepower" department that most other bosses specialize in.
- Rare Random Drop: The Crystal Crab's Katana, a fast-swinging sword that generates crystal spikes on crits.
Giant Golden Crab
- Bonus Boss: An upgraded Giant Crystal Crab that you have to go out of your way to engage in battle with.
- Energy Absorption: Which is even stronger than its original variant, healing 5 HP per attack taken.
- King Mook: To the Gold Beetles.
- Playing with Fire: Its golden crystal attacks set players on fire.
- Rare Random Drop: The Golden Crab Warhammer, which can slam the ground to create shockwaves and rings of golden spikes.
Stage 1 - Relics
Prehistoric Colossus/Giant Of Dead Cells
- Death from Above: Can call down rains of flaming meteors.
- Flunky Boss: Can summon smaller totems in combat.
- Golem: Relics is a Mayan-themed area, so it's a given.
- Interface Screw: If you stand on the green circles it creates when they turn red, it inflicts a debuff that scrambles the player's controls.
- Invincible Minor Minion: Has two invincible arrow totems in his room that harass players with arrows.
- King Mook: To the stone totems found within the relic biome.
- Rare Random Drop: The Fist Bump, a punching weapon that can be charged up to launch a charging attack which creates shockwaves on impact.
- Shockwave Stomp: Well, it uses its hands, but it can create earthquake waves by slamming its hands onto the ground. These are either area of effect blasts around its hands or a chain of blasts aimed at the player.
- Stationary Boss: Doesn't move.
- Death from Above: Will call a poop rain that has an Area of Effect that will make your attacks slower.
- King Mook: To the monkeys found in the relic biome.
- More Dakka: His main gun is a PKP.
- Rare Random Drop: The Golden Cudgel, a melee weapon which can be extended or shrunk at will to give it three different modes of attack.
- Recursive Ammo: One of its attacks is using the Splitter Cannon which, if its bullet impacts, divides into several projectiles in every direction.
- Time Bomb: Will drop TNT around that explode a few seconds after.
Stage 1: Ruins[[folder: Zulan In Ruins]]
- Final Boss Preview: It's literally just a weaker version of Zulan the Colossus.
Stage 2 - Kingdom
- BFS: Wields a gigantic sword longer than he is.
- Boring, but Practical: He relies less on Bullet Hell and more on fast, close-range attacks that come out too quickly to dodge.
- Cluster Bomb: Can fire several large spheres that explode into smaller bullets.
- King Mook: To the various Knights found beforehand.
- Lightning Bruiser: He's deceptively fast, attacks nearly constantly, and has high HP.
- Rare Random Drop: The Grand Knight's Sword, a blade that fires arcs of bullets. Every third attack, the sword will perform a stabbing attack that fires an arrowhead of bullets instead.
- Recursive Ammo: Can fire large orbs that explode into more bullets.
- Red Is Violent: He's predominantly red and is a very powerful boss.
- Glass Cannon: When compared to the Grand Knight, anyways. He's a lot less mobile and doesn't have as much health, but he can belt out enough projectiles and lasers to cover the whole screen fast.
- King Mook: To the Wizards found beforehand.
- Pinball Projectile: Can fire red orbs that bounce off of walls.
- Rare Random Drop: The Staff of Wizard, a shotgun-type weapon that rotates through 4 shot colors, with each having a different effect.
- Red Is Violent: He's predominantly red and is a very powerful boss.
- Wave-Motion Gun: Can fire a large laser that sweeps the area, which is arguably his most dangerous attack.
- Blob Monster
- Flunky Boss: Can spawn in slimes to assist him.
- King Mook: To the exploding slimes found throughout the dungeon.
- Poisonous Person: Can create poison clouds.
- Rare Random Drop: The Magic Glove, a shotgun-type weapon that can be held down to fire spreads of fire/poison bolts.
- Stuff Blowing Up: When he Turns Red, a bar will appear over his head and charge every time he takes a hit. Every time he takes 15 hits, the Grand Slime will let out a massive explosion.
- Taking You with Me: Upon death, he will detonate 7 explosions on top of his corpse and spawn 5 more slimes.
- BFS: Like his counterpart, except his looks a lot more jagged and glows with red light. Oh, and he has two of them.
- Black Knight: Obviously.
- Dual Wielding: Instead of wielding a sword and shield, the Dark Grand Knight uses two swords.
- Evil Counterpart: To the Grand Knight… not that he was a good guy in the first place. However, he's not just a Palette Swap, as they use different attacks.
- Pinball Projectile: Can fire a ring of bullets that bounce of walls.
- Rare Random Drop: The Deep Dark Blades, a dual-wielded sword that alternates between spin and stab attacks, both of which summon swords to strike enemies and fire bullets in multiple directions.
- Recursive Ammo: Some of his bullets will explode into more bullets.
Stage 2 - Dungeon
- Arm Cannon: Its arms appear to be the guns that it uses to fire.
- Crosshair Aware: Its mortar strikes are forewarned by crosshairs before they land.
- Death from Above: Can rain down a large amount of mortar strikes.
- Killer Robot: A hovering robot that can obliterate you with barrages of explosions and lasers.
- King Mook: To the Batteries.
- Turns Red: All of the bosses do this, but C6H8O6's sprite literally gets some extra red lights at half health.
- Wave-Motion Gun: Can fire two that sweep in opposite directions.
- Rare Random Drop: The Bomber, a gun that if fired for long enough will begin churning out inaccurate, explosive rockets at a ridiculous rate.
- Recursive Ammo: Can fire giant orbs that explode into more bullets, which explode again into more bullets.
- Charged Attack: He can charge up for about a second before launching a devastating arrowhead that explodes. This is telegraphed by his eyes glowing brightly as he enters a stance with his swords.
- Dem Bones: He's a skeleton himself.
- Dual Wielding: He carries a pair of large swords.
- Flunky Boss: Summons hordes of Skeletons to serve as meatshields and Zerg Rush support.
- Homing Projectile: He can fire a ring of arrowheads that will home in on your location.
- King Mook: He's the leader of the skeletons, and he's literally a king.
- Necromancer: He can summon several melee skeletons against you.
- Shockwave Stomp: A variation. He can leap at the player and slam down with his swords, creating a ring of projectiles.
- Rare Random Drop: The Staff of Skeleton, a staff that allows you to summon your own horde of melee skeletons.
Stage 2 - Halloween
Headless Knight (& His Horse)
- Dual Boss: Once he Turns Red, its head and body separate and become two separate enemies.
- Off with His Head!: Once they reach half HP, it splits into two.
- Rare Random Drop: The Emperor's New Gun, an exceptionally powerful shotgun weapon that rapid-fires piercing bolts. It also vanishes if the player drops it and leaves it on the ground for too long.
- Wave-Motion Gun: Liberally uses these.
- Flunky Boss: Can summon small phantoms to assist him.
- King Mook: To the standard phantoms.
- Rare Random Drop: The Extra Crown, a unique weapon that turns the player invisible for 5 seconds, allowing them to navigate around foes without them noticing.
- Teleport Spam: Frequently warps around the room.
Stage 2 - Chiseltown
- Chess Motif: The whole Biome counts as this, so it's a given.
- Damage-Sponge Boss: Despite being a 2-5 boss, she has more health than even the 3-5 bosses.
- Explosive Barrels: Now with Poison variants!
- God Save Us from the Queen!!: Pretty much so.
- King Mook: More like Queen Mook to the Chisel Pawns/Knights/Bishops/Rooks.
- Multi-Armed and Dangerous: Summons an additional pair of arms for additional firepower once her health drops to half.
- One-Hit Kill: Before being nerfed in an update, her electric barriers exploded for 30 damage when destroyed, which is guaranteed to wipe out any players without the Shield Buff.
- Playing with Fire: One of her new attacks include dropping missiles in a cross pattern, leaving fire behind.
- Rare Random Drop: The Queen's Touch, which fires both a continuous laser and barrages of homing missiles that increase in intensity the longer it's fired. It also breaks if the player dies while carrying it, turning into the Queen's Stroke, which can only perform a weak melee attack.
- Shock and Awe: Her electric barriers will activate once she reaches half health, electrocuting players for 2 damage per tick. They can be destroyed since they only have 150HP.
- Chess Motifs: Same as The Mecha Queen.
- Damage-Sponge Boss: There's a good reason why some players think Chiseltown is the hardest biome, surpassing all the Level 3 biomes!
- King Mook: To the rest of the enemies in Chiseltown. It even summons Mecha Knights (B/P/S/X) to assist in battle!
- Rare Random Drop: The Scepter of Majesty, a staff that summons electric orbs by default and performs a spinning melee attack when charged. Its secondary fire can summon Chisel Knights to aid in battle, or summon King and Queen themselves to unleash the same attacks they used during their battles.
- Shock and Awe: Some tasers will appear instead of Poison Barrels, electrocuting you if you get near. It's best to take them out first, since they only have 100HP!
- Wave-Motion Gun: Can fire a massive beam that's even larger than Varkolyn Leader's, though it covers a much smaller area due to not being fired in a sweeping motion. It will, however, lock on to you before firing a red laser.
Stage 2 - Cave
Cave Ice Bug
- An Ice Person: Summons invincible ice blocks around the map, which it can either detonate into rings of shots or eat to heal itself.
- Cut Scene: When entering the boss room, two Miners will be happliy mining, only for the boss to explode out of the ground, kill them both, and start combat.
- Death from Above: Summons falling icicles at random locations of the room.
- Dig Attack: Can dig underground, leaving trails of ice spikes that explode into freezing shots.
- Hyperactive Metabolism: It spawns blocks that, when eaten, refills a bit of its life bar and makes itself grow longer.
- King Mook: To the Ice Bug Larvae of the cave biome.
- Rare Random Drop: Ordeal In Disguise, a weapon that summons 8 icicles at random locations in the room. Also, it looks like its head.
- Sand Worm: An ice worm, specifically.
Stage 2 - Swamp
◿ ⊣⊢ ⨀ ϟ ‡, Lord Of Infinite Doom
- The Corruption: All of the enemies found in the Swamp can be found "infected" with the same tentacles the boss uses.
- Cut Scene: Makes its entrance by using its tentacles to drag the random enemies in its boss room into a massive rift, before rising out of the rift and starting its attack.
- Eldritch Abomination: Incomprehensible name? Way too many tentacles? Tears rifts in reality to attack? It ticks off most of the boxes.
- Flunky Boss: Summons Combat Tentacles that swat at players and leave purple poison on death.
- Puzzle Boss: During its second phase, it tears a rift into the ground and enters a defensive stance that turns damage into healing. The player has 10 seconds to find a golden silhouette and stand in it, otherwise the boss releases an unavoidable attack. Sometimes, the silhouette will be too big or too small, requiring the player to find glowing runes around the map to adjust their own size for it.
- Rare Random Drop: The Dark Shadow, which summons tentacles to slam on nearby enemies.
Stage 2 - Grave
Grave Guard Scarab Archon
- Attack of the 50-Foot Whatever: This thing is massive, easily the largest boss as of its release. If you're in Badass mode and fight the champion version of the boss, it barely even fits on your screen!
- Blade on a Stick: Its weapon of choice, which can be looted upon defeating it.
- Cut Scene: When entering the boss room, two monkeys are found killing small scarabs for fun, only for the Scarab Archon to fall from the ceiling and kill them in retaliation before starting the fight.
- Flunky Boss: Summons small scarabs to help it.
- Rare Random Drop: The Grave Guard's Hatchet, a melee weapon with four different attacks depending on how long it's charged for, the last of which sacrifices armor to launch a devastating blow which also summons elemental scarab minions.
- Recursive Ammo: Fires large bullets that spray more bullets behind them.
- Regenerating Shields, Static Health: The Scarab Archon has a second grey armor bar that takes damage for it and reduces all damage taken to 2 while it's up. Breaking the armor will stagger it and make it take proper damage for a bit, but it will fully restore its armor a few seconds after.
- Shockwave Stomp: Can strike the ground with its weapon to spawn homing shockwaves which spawn more bullets as they travel. When it Turns Red, it also gains a leap strike that spawns shockwaves in a ring pattern.
- Villain Respect: When he's defeated, he opens a portal to Stage 3 and lets you pass.
Stage 3 - Spaceship
- Combat Tentacles: He often summons tentacles that can fire bullets at you, which also emit poison upon death.
- Cluster Bomb: Can fire a large bullet that explodes into smaller ones.
- Exploited Immunity: His tentacles (and himself) will spawn poison clouds everywhere. Unfortunately for you, not only is he immune to the clouds, he actually becomes invincible while in them.
- Strangely enough, he's still vulnerable to the Alchemist's poisons and poison from weapons.
- Final Boss: One of three possible ones if you get the Spaceship as Level 3.
- King Mook: To the Varks found in his level.
- Iconic Item: The Vark Assault Rifle, a special multiform gun. Normally, it's a no-cost assault rifle, but swapping its mode will turn it into a powerful sniper rifle.
- Wave-Motion Gun: Can fire a massive one from his mouth.
Zulan The Colossus
- Attack Drone: His drones can sometimes detach from him and chase you while alternatively firing bullet spreads or lasers.
- Bullet Hell: Even in a game where the bosses rely on projectile spam, he stands out for being able to vomit out more bullets than any other boss in the game.
- Drone Deployer: He has several drones protecting him, and they fire bullets and lasers at you.
- Energy Weapon: He can have his drones fire deadly beams in either focused or radial formation.
- Final Boss: One of three possible ones if you get the Spaceship as Level 3.
- Iconic Item: The Floating Laser and Floating Gun, smaller versions of his drones that function as basic guns when active but become invincible followers that attack with lasers/bullets respectively when sheathed.
- King Mook: To the aliens found in his Spaceship.
- Turns Red: While all bosses can do this, Zulan is notable since he actually turns red when below half health.
Floating Laser UFO
- Iconic Item: The Dead Star Laser Gun, a laser rifle that rapidly fires elemental lasers.
- Final Boss: One of three possible ones if you get the Spaceship as Level 3.
- King Mook: To the Aliens/UFOs.
- Macross Missile Massacre: Can spew out volumes of homing missiles that track players before exploding.
Stage 3 - Volcano
Baby Dragon Bros
- Dual Boss: You fight two of them at once.
- Final Boss: One of three possible ones if you get the Volcano as Level 3.
- Homing Projectile: One of the two will fire rings of homing arrows.
- Iconic Item: The Dragon Bros' Sniper Rifle, a multiform gun that starts off as a sniper rifle that fires bullets that leave flaming craters along with occasional bursts of homing arrows. Switch its mode, however, and it turns into a powerful laser cannon that can inflict burn upon critical hits.
- Kill One, Others Get Stronger: The Dragons will enrage either if their own HP reaches half or their counterpart dies.
- Playing with Fire: They can set things on fire and rain down meteors.
- Stuff Blowing Up: They can lay lava orbs that will explode violently after a delay.
- Wave-Motion Gun: They can both fire them, and they will use it more often as they enrage.
- Dig Attack: Can dig around, leaving behind turrets and radial blasts in its wake.
- Final Boss: One of three possible ones if you get the Volcano as Level 3.
- Iconic Item: The Sandworm, an energy-hungry pseudo-shotgun that fires massive shockwaves.
- Pinball Projectile: Some of its shots can bounce.
- Sand Worm: Of course.
- Stuff Blowing Up: Can fire a large arrow that explodes violently on impact.
- Final Boss: One of three possible ones if you get the Volcano as Level 3.
- Flunky Boss: Can create tombstones that summon mummy minions. This also includes the Mook Medic Elite Staff Mummies, which can heal him and the other minions.
- Iconic Item: The Staff of Anubis, which shoots harmless bullets which transform non-bosses into Mummies or Frogs. Quite useful for neutering Elite Mooks and boss minions.
- King Mook: To the mummies in the volcano.
- Life Drain: Can summon obelisks that generate poison fields which cause damage and slow your fire rate.
Stage 3 - Neo Isle
Iron Pirate King Level
- Final Boss: One of two available bosses if Neo Isle is chosen for Floor 3-x.
- Flunky Boss: Constantly summons Infantry Pirates (Type B, specifically) throughout the battle, who provide a large amount of his firepower.
- Ninja Pirate Zombie Robot: Like many other enemies in Neo Isle, he's a mechanical pirate.
- Puzzle Boss: Equipped with a shield that reduces most damage by 80%. Tricking him into grabbing one of his cannonballs with his hook will temporarily remove his shield, allowing the fight to be completed much faster.
- Stone Wall: By himself, he's relatively lacking in offensive capability, with most of his attacks doing low damage or being easy to dodge. He makes up for it with a shield that heavily reduces most damage (-75% damage per hit).
- Tactical Suicide Boss: His shield would be impossible to break if he didn't try to grab the player with his hook. Under Dual Boss challenge conditions, he can be tricked into grabbing other bosses, hitting them for 100 damage.
Iron Will Wavebreaker
- Final Boss: One of two who can appear at the end of Neo Isle.
- Flunky Boss: Frequently summons other enemies found in Neo Isle.