Tropes regarding the Guest Fighters.
- And the Adventure Continues: In the ending, we see the four of them preparing to fight a team of Liguid Samurai and Archers, with narration noting they're "Always ready for battle".
- Bonus Boss: None of them are mandatory to beat the original game or Plague of Shadows, but offer a nice challenge.
- Hero of Another Story: The composer's notes for their theme, "Fighting With All Our Might", implies they are this.
- Tuckerization: Intentionally done, as all 4 are based on high-tier backers of the Kickstarter.
A group of evil knights is terrorizing the countryside? Reize Seatlan is on the scene! This plucky young adventurer travels the land, helping people in need and following his own invented Knight's Vows. But which of these knights are good, and which ones are bad?
Tropes regarding him are here.
Mr. Hat is obsessed with hats, but for good reason! For although he wears a helmet, each hat that he places atop his head gives him the powers of that hat's owner! Mr. Hat can switch from a charismatic foppish dandy to military genius in a moment, and he takes great pride in his varied fighting styles. Lately, though, there have been rumblings of an even greater warrior who wields a Shovel Blade; one with a wonderfully blue, horned helmet...
- Badass Grandpa: Is implied to be an old man according to Plague Knight, who outright calls him a geezer based on his style. Though given his helmet, which hides his face, Mr. Hat's real age is left ambiguous.
- Berserk Button: Hoods.Mr. Hat: !!! You miscreant! Hoods! That's not even a proper hat! No structure, no support! No... flair!Plague Knight: Hats are a waste of felt, old man! They fall off in the wind! Hoods are objectively more utilitarian!Mr. Hat: How... How dare you, sirrah...... I demand satisfaction! HAVE AT YOU!
- Cash Gate: You have to spend 3000 gems to make everyone leave his shop before he'll challenge you; however, he drops over 5000 when you beat him. If you chase him around town after beating him, you can get all the gems you spent back as well. Subverted in Plague of Shadows, where he just fights Plague Knight outright. You do need to pay 50 Cipher Coins to get to him, though.
- The Cameo: While he's not fought in Specter of Torment, he can be seen sipping tea in the "Where Are They Now?" Epilogue right before the Enchantress attacks the Armor Outpost.
- Clothes Make the Superman: Well, only hats give him superpowers, but still. The spiky pickelhaube lets him plant swords in the ground to be turned into projectiles when he hits them, while the feathered bonnet allows him to throw saucers, teacups, and bounce on his cane like a pogo.
- Demoted to Extra: Downplayed, due to his nature as a Bonus Boss. In Specter of Torment, he's just a cameo who gets no dialogue or even an optional boss fight.
- Expy: He's the closest thing to Mega Man in the game, as his equipping of different hats gives him different powers.
- Quintessential British Gentleman: Sharply dressed and very polite as well.
- Insistent Terminology: Shovel Knight is confused as to why Mr. Hat wants his helmet, since it is, well, a helmet. But Mr. Hat insists that as a piece of headgear, it still counts.
- Nice Hat: With the additional bonus of gaining a special power for whatever hat he wears. After you beat him as Plague Knight, he says that the hats don't work on anyone else but him.
- Shout-Out: One of his hats allows him to bounce on a cane like a pogo stick to get around, just like a certain duck is known to do.
The storm is coming... With a fearsome rope whip and the toughest-looking armor around, one might think that the traveling warrior Baz would be a shoe-in to join up with the Order of No Quarter. Imagine his surprise when he was rejected! He now roams the land, taking out his anger on passersby. Could he ever prove himself strong enough to earn the title of "Baz Knight"?
- Butt-Monkey: Things don't usually go The Baz's way. In Specter of Torment, he shows up only to be immediately told to Get Out! by Specter Knight. There isn't even a fight!
- Demoted to Extra: Downplayed, due to his nature as a Bonus Boss. In Specter of Torment, he's more or less just a quick gag who doesn't even get a boss fight, leaving The Tower immediately after being told to scram.
- Guest Fighter: A regular fixture on Two Best Friends Play, The Baz was added as a secret boss after Matt and Woolie supported the game's Kickstarter campaign. Other players may also recognize him from Divekick, where he is a playable character.
- Defeat Means Friendship: After Plague Knight defeats him, he can offer The Baz to become one of his minions. Happy to finally be offered a membership of an organisation, The Baz gladly accepts this.
- Heroic Wannabe: Or rather, Villainous Wannabe. He wishes to be a member of the Order of No Quarter. He challenges Shovel Knight in hopes to get in.
- How Do I Shot Web?: In Plague of Shadows, The Baz admits that he can't figure out how to shoot lightning like what he's able to do in his boss battle.
- Inelegant Blubbering: After being defeated by Shovel Knight, he throws a tantrum worthy of a three-year-old.
- Insane Troll Logic: He believes that becoming a scientist works like Klingon Promotion; if he can kill a scientist, like, say, Plague Knight, he becomes one himself. It's probably because the same seems to be true of Knighthood (Shovel Knight doesn't deny it when he brings this concept up in his boss fight).
- Mythology Gag: His being rejected from the Order is a callback to The Baz's origins as a rejected Street Fighter character.
- Self-Serving Memory: Baz believes he was rejected from the order out of cruelty. In Specter of Torment he actually broke into their castle and arrogantly thought he could invite himself to join the order. Specter Knight and Dark Reiz told him to go away after a moment of confused silence since nobody has ever tried something like this before.
- Shock and Awe: He can discharge lightning with certain attacks.
- Small Name, Big Ego: He fully admits in Specter of Torment that his reason for trying to join the Order was to be "the main event".
- Sore Loser: After being beaten, The Baz throws a crying fit like a big baby. Subverted in Plague of Shadows where, after being defeated by Plague Knight, he accepts his loss with more dignity this time. Plague Knight can also recruit him to be his minion, even giving him robes similar to the ones already working for him.
- Throw the Dog a Bone:
- In the ending, he's seen with the other Wandering Travelers preparing for battle, finally in an Order of a sort. In Plague of Shadows, Plague Knight can recruit him, and Baz is completely fine with it.
- After the fight against the Battletoads in the Xbox and PC versions of the game, he and Reize stand around in the area where the Battletoads are. Reize expresses interest in becoming Baz's student because he thinks Baz is cool.
- Turns Red: The Baz will create a lightning storm that will strike him, giving a brief shield from time to time.
- Whip It Good: He uses a whip for a weapon. This somehow also makes him immune to the shovel plant. Must be the spinning.
A lone warrior, Phantom Striker appears to those that he deems worthy of challenging him. Light on his feet and wielding a rapier, this enigmatic fighter also controls the power of lightning! Always in search of an honorable battle, Phantom Striker may reward those who fare well against his cyclonic charge.
- Ambiguously Human: It's unstated if he has powers like various other cast members, or if he's a ghost, as per his name.
- Ascended Extra: Serves as the boss of the Lich Yard in Specter of Torment, where Specter Knight attempts to recruit him into the Order of No Quarter. Needless to say, he doesn't join.
- Blood Knight: Has apparently battled several other knights before Shovel Knight, and believes conflict itself is reason enough for a fight.
- Challenge Seeker: He seeks for strong warriors to test them and accept challenges as well.
- Combat Pragmatist: In Specter of Torment, he does a sneak attack on Specter Knight because he knows what Specter is capable of and is decidedly not taking any chances.
- Cultured Warrior: Besides being adept with his rapier and lightning magic, he's also well-spoken and erudite.Phantom Striker: Power. Honor. The traits of a respectable warrior.
- Good Counterpart:
- He has a teleportation-oriented ability-set, could be a ghost of some sort, and is a fairly serious fighter, similar to Specter Knight, but is an ultimately honorable, heroic fighter. He even takes Specter Knight's boss position in the Lich Yard in Specter of Torment.
- To Propeller Knight. Both use fencing as their preferred combat style and are both are associated with elements of the sky (Propeller Knight for wind/air and Phantom Striker with lightning). Both were approached by Specter Knight to join the Order of No Quarter, both were beaten by Specter Knight, but Phantom Striker still refused to join, while Propeller Knight submitted.
- Good Is Not Dumb: He has a code of honor, but he's willing to drop it if it means protecting others. Sneak attacks are completely fair game to him during Spectre of Torment.
- Graceful Loser: Accepts his defeat, but warns Shovel Knight that he needs to be even stronger for the later challenges. Even more so if you do well enough in your fight with him he compliments your fighting skills, says he'll be watching, and leaves a lot of extra money for you.
- He leaves similarly well in Plague of Shadows if you do well in his boss fight, praising Plague Knight's ability of dodging. However, if you drink a tonic, he will leave with a pretty snippy comment about it...
- Hold the Line: In Specter of Torment, he's shown in the town that would become the Lich Yard trying to stop Specter Knight's forces from razing it. While he kept the loss of life to a minimum by letting the villagers evacuate, it's a Foregone Conclusion that he fails and the town is destroyed.
- O.O.C. Is Serious Business: He considers Specter Knight to be so dishonorable that he goes for a cheap shot, something he didn't even do against Plague Knight, in spite of knowing he's an Order member.
- Pre-Asskicking One-Liner:Phantom Striker: Conflict is a reason unto itself, brave knight. Today, you will be tested. Are you ready?
- Shock and Awe: Most of his abilities are lightning-based.
- Shout-Out: One of his attacks, where he points his rapier upward and then stabs forward, visually resembles of one of Enker's attacks.
- Teleport Spam: He has an attack where he repeatedly teleports, each disappearance leaving behind ball lightning that moves toward your location when it appeared. He uses it much more in Specter of Torment.
- Worthy Opponent
- What he sees Shovel Knight as, especially if you do well enough in the fight with him.Phantom Striker: Your skills are as vast as I thought! I shall follow your journey from the shadows. Farewell, Shovel Knight!
- He can praise Plague Knight as well if you beat him without losing half of your health.Phantom Striker: I misjudged your ability. Your skill in dodging so many of my attacks is uncanny! You are surely capable of carrying out your quest! Take this reward, and farewell!
- Averted for Specter Knight. He sees him as being so completely dishonorable that he attempts a sneak attack before the boss fight.Specter Knight: A surprise attack...? Hardly befitting the honorable warrior I had hoped to meet.
Phantom Striker: Ah, the wraith yet speaks of honor, having surrendered his own... to serve as an errand boy.
- What he sees Shovel Knight as, especially if you do well enough in the fight with him.
The protagonist of the God of War series whose character and exploits are far too grim to be explained here. For tropes related to him in his home series, see here.
Kratos is exclusive to the Sony versions and will appear on the map as a wandering encounter once the Curious Map is obtained. He is only present in Shovel of Hope.
- Adaptational Nice Guy: He briefly mocks Shovel Knight for his Weapon of Choice, but comes around to considering him worthy of praise after being defeated, gives him a prize, and very calmly leaves afterward.
- And Your Reward Is Clothes: Defeating him rewards you with the Chaos Armor, which turns Shovel Knight's normal attacks into 3-hit combos with increased reach and gives him the ability to float in the air when performing one while jumping, much like Kratos. His shovel drop also causes him to stop in midair and pierces straight through dirt blocks without bouncing off. It also causes health and magic pickups to turn into green and blue orbs that home automatically into Shovel Knight and defeating an enemy or dealing damage to a boss may cause a red orb to appear, which makes Shovel Knight's next attack fire out a fireball that goes through enemies and scenery.
- Guest Fighter: From God of War.
- Lighter and Softer: Unsurprisingly, given Shovel Knight's setting, he doesn't engage in the same carnage as he does in his home series.
- Sequential Boss: Once he gets low on health, he goes into Rage of Sparta, getting a full health refill and starts throwing bits of the arena at you. Once you deplete his health in that mode, the arena crumbles completely and you have to fight him on a series of falling platforms.
- Stop Poking Me!: A subdued version, which is ironic considering who's at the receiving end of it: when he's starting to leave after the battle, he'll pull a hood over his head and start walking away slowly. Hitting him with the shovel causes his hood to fall off, causing him to stop, pull it back up, and continue walking slightly faster. You can keep repeating this to make him walk faster and faster until he finally leaves the screen.
- Worthy Opponent: Acknowledges you as one for defeating him armed only with a shovel.
The Battletoads, a group comprised of Rash, Zitz and Pimple, that hail from the series of the same name. For tropes related to them in their home series, see here.
They were originally exclusive to the Xbox One version of Shovel Knight: Treasure Trove, but were later added to the Windows 10 version and reached other computer versions in October 2017. They can be found in the Mysterious Area. There the player can have a "sparring match" with each one of the Toads emulating the gameplay of the original Battletoads game.
- And Your Reward Is Clothes: Defeating them rewards you with the Toad Armor, which allows Shovel Knight to sprint, deliver rapid-fire strikes, and increase the size of his shovel when doing a downward strike.
- Ass-Kicking Pose: They love to do this. Shovel Knigh can join them in one once he defeats them.
- Badass Baritone: Pimple. His Voice Grunting is the deepest in the game, by a wide margin.
- Cool Shades: Rash has these.
- Graceful Loser: If they are defeated, they name Shovel Knight an honorary battle toad, give him armor to match, and even invite him to get in on an Ass-Kicking Pose.
- Guest Fighter: From Battletoads.
- Mascot with Attitude: All of them, but especially Rash.
- Nice Guy: All three of them are pretty chill, and take time out of their trip to grab some food to teach Shovel Knight how to be a Battletoad, should they accept their offer.
- Sequential Boss: They are fought in multiple stages, with the first two representing levels of Battletoads (including the infamous speeder bike section).
- Shapeshifter Weapon: The Toads can transform their bodies to attack, turning into weights and making their fists and feet gigantic.
- Stock Animal Diet: As toads, they naturally enjoy eating bugs. In fact, before the encounter, they were just looking for a place to get a burger and flies. And after the encounter, they invite Shovel Knight to join them for some grub. Shovel Knight politely declines.
- Unexpected Gameplay Change: The second stage of their boss battle involves hoverbikes.