13 INSANE New Isaac Bosses!!! - Full Boss Butch Showcase

[@SlayXc2]

This mod is so insane! I'm in love with Tabacadabra, he is so cute

[@salt_statue]

Personally I think Sparky is my favourite one, but I also love Tarbacadabra because of the pun! (Also I can't believe you got his name wrong, smh. /j)

[@draw2death421]

I believe mournmurus is a refrence to that one enter the gungeon wall boss.

[@voxe1155]

"TAR"bacadabra not "TA"bacadabra

[@failtronic2646]

tarbacadabra also has the best death animation. BONK!

[@Judas-xp2fl]

Fun fact : Mornmurus is a reference too a boss from Enter the Gungeon

[@jabrio3584]

Mirage changing depending on what side of the mirror you are is incredible attention to detail

[@joe____]

Yeah that's fucking awesome

[@ThorDude]

What got me was the interaction with cleaver. Easy decision to download.

[@mikethegoo]

And the cleaver just pulling a Dark Esau birthright is so cool too!

[@cookies_and_mustard6414]

The Duke Bloat was probably the most effective fakeout I’ve seen in a mod. I genuinely thought I was having mod compatibility issues and was caught so off guard! This is a great mod!

[@Burger5625]

It's amazing and terrifying at the same time

[@Kyuorsomethingidk]

Oh phew the duke of flies the easiest boss ever thank goodness this will be an easy run OH MY FUCKING GOODNESS IT'S THE BLOAT

[@lololol24ttttt36]

@@Kyuorsomethingidk”oh wow it’s the duke this will be easy, wait is that? OH COME ON”

[@langologeek8073]

Honestly, I aspects see bloat pop out from monstro it's point

[@klaus.sfc01official30]

Wouldn't that be a great idea? A mod where the bloat pops out of every boss ;) I am just joking please don't kill me =:

[@witchamy]

small detail: tarbacadabra gains his own spotlight if the floor has curse of darkness!

[@seraphimhead553]

Thats awesome

[@Da_ComputerMonster]

Hi Amy; Thanks for making such awesome Mods

[@Pinga-lz7rb]

@@Da_ComputerMonster What.

[@Cole_Is_A_Mole]

@@Pinga-lz7rbthey must think Amy made this. (I'm 99% sure she hasn't)

[@nightmaregamer1410]

I find it cute that he makes isaac walk in the shape of a heart in the beginning :3

[@mr.boxhead4075]

Slay our beloved

[@ProfX501]

And with Mozzie’s tears at the end

[@Battler-k8y]

13:08 I like how it’s a noticeable reference to The Wall from Enter The Gungeon. I have no idea how people can make such unique bosses. Imagine the time they had to take coding and designing and even animations everything into not only this boss, but all the other bosses in this mod.

[@Not-olyo]

LETS GO I FOUND OTHER PEOPLE WHO PLAY ENTER THE GUNGEON RAHHHHHHHH

[@mcyum6815]

GRAH

[@nikofoundaniphone1109]

@@Not-olyolike most of gungeon players are isaac players

[@Vulphiz]

Glad to know I wasn’t the only one that got major Wallmonger vibes from Mournmurus

[@asierx7047]

Gotta love how the very first attack it makes is a wallmonger attack as well, down to projectile color.

[@jma0645]

The randomness of boss description remain me a lot of the almanac from planets vs zombie This is one of the coolest mods I have seen in a while

[@Pinga-lz7rb]

lul

[@FunnyMan69-ci9yk]

​@@Pinga-lz7rbguys, no matter what, NEVER translate that to english

[@Pinga-lz7rb]

@@FunnyMan69-ci9yk doesn’t that mean a goofier version of LOL?

[@FunnyMan69-ci9yk]

@@Pinga-lz7rb it said translate to English and when I did it changed it to d***

[@Pinga-lz7rb]

@@FunnyMan69-ci9yk that’s creepy.

[@mcyum6815]

Vade retro kills dust devil when he’s at half health

[@chrisbait]

​@schizopenguin Damn it, you beat me to it.

[@MilkmanWasHere]

hi mcyum

[@brysonwelshbalmer56]

​@schizopenguinshe's 🤓

[@mcyum6815]

@@MilkmanWasHere hi milkman

[@thegreatautismo224]

I thought Radical Rat seemed super out of place at first, both in theming and spritework. I thought he was some kind of self-insert or something, but him being from Mewgenics makes much more sense

[@friendlyyoutubecommenter4527]

I thought he was from Super Mario Bros. 2 (the USA one, not the Japan one)

[@icetide9411]

At first I thought Mozzie was just okay, but giving her completely different variations based on the different types of mosquito enemies is such a cool idea. Especially since there is one specifically designed for the Fiend Folio electric mosquitos

[@holeofdarn]

she’s “fiend folio compatible” 🤢

[@zelpyzelp]

@@holeofdarn What's wrong with Fiend Folio lol

[@holeofdarn]

@@zelpyzelp It perfectly sums up why I hate most mods and mod creators: _They feel the need to add unfunny jokes and their own twisted ideologies into their mods. On top of that, it makes the game twice as hard for little to no payoff._

[@zelpyzelp]

@@holeofdarn Twisted ideologies???

[@xyrongonzalez3833]

@@holeofdarn what is bro yapping about 💀

[@an_annoying_cat]

brainrot using the laser attack from the witness that didnt get carried over from antibirth is genius

[@conorsmith4102]

I thought you were gonna reference hours

[@larlwheezer2334]

im not usually a fan of isaac's toilet humor, but i love how Bart is based on the classic flaming bag of shit prank

[@notloopers1110]

im sorry, based on the classic WHAT?

[@genericguymandude]

i dont remember this prank at all 😭

[@KillaSardinez5656]

For anyone curious, it’s like the prank where you put shit into a brown bag and put it at someone’s front door and light it on fire, basically the whole deal is that you get the person to come out and stomp on the bag to put out the fire, but then they get shit all over their foot

[@notloopers1110]

@@KillaSardinez5656 man pranks were fucking CRUEL back in the day

[@yuvi3000]

It would be epic if using Mom's foot via cards, items etc had an interaction with this.

[@the_sund]

If I correctly remember, Radical Rat will be the boss in Edmund's next game, Mewgenics

[@Gabzew]

yup

[@ClefTheMouse]

This boss has to be a reference to Mouser from Super Mario Bros. 2, no? Those sunglasses, attacking by throwing bombs?

[@lordpumpkinhead265]

@@ClefTheMouse I was thinking The Resourceful Rat from Enter the Gungeon.

[@steponkusceponas4085]

correct

[@mcyum6815]

@@lordpumpkinhead265I was thinking of the mouse from Kirby squeak squad the one with the hat one

[@pixelplz]

man I wish there was a mod to add 13 insane new bosses butch:

[@Dr.MyfatBALLSinOhio]

And more is going to come? After you take a break of course..... I do hope you add more floor specific bosses to afterbirths alt floors because they have are really empty Also...... Please for the love of god rework turdlings and dangle they are the laziest isaac bosses EVER made

[@flamekiller3338]

@@Dr.MyfatBALLSinOhio go make your own mod if you want it so bad

[@Dr.MyfatBALLSinOhio]

@@flamekiller3338 >current year >having a skyrim pfp My man is living in ohip 😂😂😊

[@owennelson5814]

@@Dr.MyfatBALLSinOhio 1. Who gives a fuck about pfps in 2024 2. I agree. You make your own mod if you want what you want so bad 3. "Ohip" Bro just embarrassed himself ☠️ 4. You do not know if flame lives in Ohio anyway

[@colorfulcookie8961]

​@@Dr.MyfatBALLSinOhio aren't you also the one on the video about this mod make by IsaacGuru and complain about THEIR music choices?

[@betoneiracromadarebaixada8187]

"The duke of bloat" _What the fuck did you just bring upon this cursed land_

[@MaladaptiveDaydreamerr]

Blame the Four Souls team.

[@butternykeYT]

@@MaladaptiveDaydreamerrand me for owning a copy of the card

[@Shaydee_boi]

The Bloat of Flies

[@norman28BR]

14:34 We got Plantera in Isaac before GTA VI

[@holeofdarn]

that’s what i was thinking, and i just beat her in terraria 😭

[@fly6_vids]

Twice!

[@Da_ComputerMonster]

Huh, I thought that was Manhandler from Zelda

[@RediCyansDump]

13:01 And we also got Wallmonger

[@hgfwasreal]

The one before tulip was literally wall of flesh

[@lazysheetghost]

sparky actually lighting up the wall in their boss portrait was an insane surprise and for such a small detail too :0

[@Gleb_da_gunpowder_barrel_186]

He's a sigma mail, no clue

[@rektbiich4585]

The lore behind the Duke of Flies and Bloat is heartbreaking...Duke just wanted to enjoy life with his family of flies and Bloat literally, with 0 consent, takes away his body....

[@witchamy]

dont worry, they're good buddies and they both consented to this

[@rektbiich4585]

@@witchamy dont insult the innocence of Duky like this!

[@purple_fella]

​@@rektbiich4585 Their title says "friendship"

[@RCGC480]

I love how they made a boss card from Four Souls into an actual boss. That's a really cool reference!

[@WhimsicottFanatic]

Makes me wonder if, in the probable far future when McMillan does make an Isaac 2, he's gonna pump a lot of Four Souls-related stuff into it And hopefully a good number of references to other projects of his like End is Nigh and Mewgenics to help fill the absence of Meat Boy stuff

[@Pinga-lz7rb]

You mean the Radical Rat from Mewgenics?

[@elenahaya1195]

​@@Pinga-lz7rbPretty sure that they mean Duke Bloat

[@GalactaKiller]

I love how Fiend's Folio is so famous every mod has to be compatible with it haha Also, Mournmurus is just Mallmonger from Enter the Gungeon, and I love it

[@SrakenKraken]

fiend folio has become the calamity mod of tboi

[@GalactaKiller]

@@SrakenKraken Not that it bothers me to be honest ! But yea, clearly

[@PanfuSerenity]

I was reninded of Wallmonger too, but some of the attacks (especially the middle beam) are more Throne from Nuclear Throne.

[@GalactaKiller]

@@PanfuSerenity Never played Nuclear Throne, so the only references I have is from EtG ^^"

[@annaritaprete6091]

Two things: The bosses having custom entrace sounds (like Sparky laughing and Dust Devil having wind is awesome) The sheer concept of THE WALL BEING A BOSS is so cool.

[@lordpumpkinhead265]

Mournmurus' concept is actually from a game called Enter the Gungeon! It's another roguelike similar to Isaac, but with a lot more emphasis on bullet hell. Check it out sometime!

[@paldoom8833]

15:53 This is what double trouble should be in the game!!!!! Crazy cool >:)

[@Cole_Is_A_Mole]

2:18 Bart really said "7 •"

[@theolabroers9614]

14:44 We got PLANTERA boys

[@mje71103]

That's cute, Mirage's other face looks like Spoiled Rotten from Wario Land 4 and samples sound clips from the Slammer ghosts from Luigi's Mansion: Dark Moon. Mournmurus is also so cool, love the idea of a classic "Demon Wall" boss in Isaac.

[@ВсеволодМихеев-п6ж]

I like, when community members cooperate with each other, like Electric Mozzie there or their own versions of tarnished character, or some cool synergies with items from other mods, that really encourages.

[@whynotanyting]

I like the use of the bent spoon to signify that the projectiles will be homing. Really nice telegraphing here even if you haven't seen this boss before.

[@ordinaryman00]

Finally. Bosses that aren't broken af

[@IKEACherryChair]

God these are so cool! The amount of love and attention each of these guys got is incredible , not to mention the difficulty seems in line with the stage, which is more than can be said for some official bosses *ahem* CLUTCH.

[@mirmordan7317]

Four souls, ETG and Terraria references? I love this.

[@an_annoying_cat]

i love how they took a teased mewgenics boss and adapted it into isaac before mewgenics is even out

[@rektbiich4585]

No one talks about HOW FREAKING AMAZING AND NEW THE MOURNMURUS FIGHT WAS !!!! 10/10 , Its just such a unique way of fighting ! Also Papa plum and Baby plum moment was cute and made sense, if you spare baby plum he comes to aid you when you need him, and if you ask him for help for ,well.... his father , afc he will turn on you :D they gotta give a better secret synergy - pacifist 30 seconds when both are on board, and both realize you arent there to harm them ,so they fly away and leave a super plum item, that summons them both and deals heavy dmg!

[@Glubnub]

I feel like since papa plum is trying to avenge baby plum, using the whistle would spare him, since you get the whistle from sparing baby plum.

[@blackakbar]

this boss is actually from enter the gungeon "wallmonger", take a look at him, u will see the identity. Nothing bad about it tho, tboi and etg are goated.

[@afunnylittlegoober]

​@user-fe1gz3de2f it even had the jammed shots

[@sergimeli4194]

​@@blackakbar ETG ❤️

[@Isiel42]

Missed opportunity to have a snippet of "Scatman's World" play every time Scat Man attacks.

[@plaguenplay3516]

copyright issues, prolly

[@jeremypanjaitan4039]

they added my boy wall of flesh into isaac im so proud of him😢😢

[@TheFighterlucario]

Let's just call it a love letter to all our favourite walls =)

[@JayconianArts]

Yum yum😮

[@draw2death421]

Thats wallmonger from enter the gungeon tho Tullip is clearly refrence to Planters so we got our refrence lol.

[@jamesfountain-e8m]

@@draw2death421 its plantera but she got corrupted buy the crimson

[@fruity-plum-guy]

MOZZIE USES RAYMAN SOUND EFFECTS 🔥🔥🔥

[@Da_ComputerMonster]

Fruity Plum *GO!*

[@julieradcliffe9486]

FINALLY SOMEONE KNOW IT! THE MOSQUITO STAGES!

[@beefchopstick]

Delirium: "I will kill you" Fruity Plum:

[@thatrandomrecorder914]

Really wish there was a special interaction where if you let Tarbacadabra show their magic tricks without hurting them, they would leave with a bow.

[@MegabombGamer-rb5kh]

Mournmulus references Wallmonger, a boss from Enter the Gungeon. Not the first Gungeon reference, as Siren has some similar attacks to the Gorgun, also from Gungeon. Fittingly, both appear on Alt Floor 3.

[@ChaseVaccaro-ge3gk]

Won't lie, I was about to ask if Gungeon also had alt floors, then I remembered that Mausoleum and Gehenna are on the same chapter.

[@genericname108]

13:02 Wallmonger moment 😳😮 Epic Gungeon reference

[@LordRemiem]

I really love the creativity in those, especially how Mirage literally SEPARATES from its own reflection if you use the cleaver against it

[@HerreZC]

0:56 Eatin Rats!

[@snakebird9048]

AHH rats!!!!!

[@FunniBSSFan]

OHHHH SHIT, A RAT!!

[@lordpumpkinhead265]

@@FunniBSSFan GONNA WHOOP YO ASS!

[@snakebird9048]

@@FunniBSSFan is it gay

[@deadlydingus1138]

Rrrrrratto

[@FunniBSSFan]

I certainly love Tulip's Body horror design, she looks great with that!!!

[@SillyGooberQ4]

Tulip gives crazy plantera vibes and im so here for it

[@Judas-xp2fl]

I love bestiary's description it adds so much personality to the enemys ! (I found a Scratch game a few month ago with the Scatman boss so I think it was a prototype. It has change a lot)

[@thedeppressedone9236]

18:45 Ah, Rayman Origins, truly a gem.

[@julieradcliffe9486]

Hell yeah. Also shows up in rayman legends, thanks to back to origins.

[@plaguenplay3516]

18:20 why is this hole looking like this😭

[@Last_Person]

Shoutout to the reference to hit four souls card, the duke of flies (but actually it’s the bloat)!

[@pastagod2219]

I like the thumbnail on the workshop page having the bosses posed like the bosses on the boss butch screen in Kirby's Dreamland 3

[@theforgotensoul]

tulip and mournmurus: we are so original. plantera and wall of flesh: are we a joke to you?

[@jonasweijer9213]

These bosses are fantastic! Their animations give them all so much personality, and they seem to be challenging but not impossible to dodge. My favorite part is Tarbacadabra using the sound effect of a stylish move in paper Mario

[@Vivi-i3i]

i find it so charming that mirage, a boss that's a ghost, has a fun play on something the organisation from fiend folio does, where they use voice FX from luigi's mansion 1, mirage uses FX from 2! (quick edit to correct this actually, the toothy one uses FX from 2, i seem to remember the other guy's FX from 1. still either way it's cool that the use of luigi's mansion voice stuff has become a trend with ghost bosses)

[@mrkeyboardmashed]

the secret interactions give this so much more quality

[@LuccaAbielPolliniMello]

Tulip gave me some plantera vibes

[@ultima9543]

It would be cool if Mozzie had interactions with a blood donation machine that we can create using a temperance card

[@skaithespirit1184]

Since there's some noticeably empty slots in the bestiary, does that imply there eventually might be more bosses added to the mod? If so I am 100% looking forward to whatever this mod's devs cook up next, because these 13 weirdos ROCK!

[@ThatRandomGuyYoutube]

I love how Mozzie uses Bzzit's sounds from Rayman origins. So nostalgic

[@Godifierr]

these are actually insane! Very good work from all the developers :D

[@ghifariasoka8272]

Since no one has done it 0:56 Radical Rat 1:49 Radical Rat Bestiary page 1:53 Bart 3:05 Bart Flush! Interaction 3:18 Bart Bestiary page 3:22 Sparky 4:48 Sparky Bestiary page 4:51 Scatman 6:14 Scatman Flush! Interaction 6:24 Scatman Bestiary page 6:38 Mirage 7:25 Mirror Mirage 8:08 Mirage Bestiary page 8:12 Dust Devil 9:23 Dust Devil Bestiary page 9:27 Papa Plum 10:28 Plum Flute Interaction 10:48 Reinforced Plum Flute 11:13 Papa Plum Bestiary page 11:17 Tarbracadabra 12:40 Tarbracadabra Bestiary page 12:46 Mournmurus 14:16 Dad's Key Interaction 14:30 Mournmurus Bestiary page 14:35 Tulip 15:43 Tulip Bestiary page 15:48 Duke of Flies..? 15:56 Duke Bloat 17:04 Duke Bloat Bestiary page 17:08 Brainrot 18:41 Brainrot Bestiary page 18:47 Mozzie 20:02 Mozzie Bestiary page 20:08 Spit Mozzie 21:11 Inky Mozzie 21:51 Volt Mozzie (Fiend Folio)

[@jpxboxdstation]

This is really great, I would love that something happens when you use a high priestess cars on the "Bart" boss while he's in flaming bag mode

[@BasementDweller_]

Yo! 15:50 It’s a Four Souls reference! It’s that one promo boss card called “The Duke of Flies but actually it’s The Bloat”. Groovy reference.

[@ribc4ges]

personally i'm a really big fan of Sparky :) i love the lil laughter he does

[@mikethegoo]

Okay but even the NAME Scatman feels so Isaac. Because it's a pun, a variation AND a reference!

[@Unedited_SF3]

13:00 no way we got wallmonger from enter the gungeon 💀💀💀💀

[@el-yerba-buena9678]

Mourmurus being an almost exact boss fight to the Wall in Gungeon is so cool. Anyway, I somewhat expected the '''murus'' in its name to mean "wall" (sounds similar to wall in spanish "muro") and that is extra cool.

[@_TeaForTwo]

18:56 I wasn't expecting a sound effect from Rayman Origins

[@AVerySealishSeal]

i'm pretty sure mournmurus is a reference to the wallmonger, from enter the gunegon!

[@enoraltheoutcast]

I LOVE these bosses. Mournmurus is basically the Wallmonger from ETG, but AH i love the execution here.

[@loganhart4]

I really love his voice, its exstreamly relaxing and helps me sleep, witch is very special as i struggle to sleep

[@TRV140E-chaine_perso]

bruh i was looking at isaac at the start of the video and he was drawing a heart

[@Jay_A_Comenter]

Good job to the team who made these, they’re very well done

[@lemin1]

Fun fact: the duke bloat is based of the four souls card "The duke of flies but really its the bloat"

[@usernametaken4023]

This mod blends in so well with the base game, too. With the exception of one or two bosses I think a lot of these could be mistaken for actual base game bosses!

[@anom4796]

Tulip - plantera Bart - Dingle 2.0 Mornmurus - wallmonger Duke bloat - reference to 4 souls Mozzie - caseoh mosquito edition Damn

[@AF_Productions]

>Caseoh Yeah, you’re banned.

[@concept8192]

haha you're so funny for saying caseoh that joke is so original /s

[@CyberweaverVT]

Hi SlayXc2! Godmode was finally updated for Repentance! It’s called The Ascent of Isaac: Godmode Achieved

[@TG-gb3ui]

Where can I download this?

[@ScottGamring]

"hey guys, it's me again" WOOHOO YEAHHHHH WOOOOOOO 🎉🎉🎉🥳🥳🥳🥳🥳🔥🔥🗣️🗣️💯💯

[@tin_cant]

21:05 chaos card 🗣️🗣️🗣️🔥🔥🔥

[@RemolachaHervida]

That Mournmurus reminds me a lot of Wallmonger, from Enter the Gungeon

[@Buzzblade146]

They really got Issac fighting the walls now 10/10

[@chubletfletcher1462]

I was NOT ready for the difficulty spike of mournmurus

[@laythontucker7978]

The Duke Bloat should have been called “The Duke of Eyes”

[@vibreart.mp3]

The Mirage looks like it came straight out of Wario Land 4. Specifically reminds me of Spoiled Rotten (aka the tutorial boss)

[@Nerscy]

Big w ETG reference with the wall boss, crazy fight

[@nabilelmehy6245]

the scat man boss piss attack is so funny to me

[@vahareklama892]

8:13 I sneezed on this moment

[@specterx2135]

@schizopenguinLMFAOOOOOOOOO 💀

[@okimiro446]

yoo two videos in less than a week wuts happenin to this channel, keep on man 👍🏾

[@RediCyansDump]

13:01 WALLMONGER!!!!!

[@Sillyguy-mb6dr]

“What? It’s just an ordinary duke? OH MY GOODNESS”

[@TheActualMrLink]

Tulip looks like something right out of Fear and Hunger!

[@Inkyrealm77]

THEY ADDED DUKE OF FLIES BUT ITS REALLY THE BLOAT FROM TBOI FOUR SOULS?! OMG IM IN LOVE

[@mikethegoo]

Evil Mirage reminds me of the red ghosts from Luigi's Mansion 2, especially his noises!

[@spydersoda]

they could do something really cool with mozzie's health stealing mechanic. like maybe after a certain number of times it gets too bloated and explodes and gives a special item

[@superleoxxl.r.s.5437]

Bro tulip is tboi plantera 😂, so cool

[@DragstsHoard]

Never thought i'd see a Wallmonger in Isaac, love this community!

[@Glubnub]

It’s also probably a reference to the door boss in gungeon too

[@DragstsHoard]

@@Glubnub yeah, the Wallmonger, thats its name

[@Glubnub]

@@DragstsHoard no there’s a different one called the door lord that just is the boss gate

[@DragstsHoard]

@@Glubnub my bad i thougth you said wall boss yeah it could be with the door lord in a way

[@Glubnub]

@@DragstsHoard I think it’s a reference to both

[@wolfboyita]

14:35 this is The Wall of Flesh and Plantera baby

[@cristianciaravolo5287]

What abaut if you use the caos card against the duke of flies before the bloat spawn?

[@hibbdibb7519]

Duke bloat be like eggman fr

[@zoeneden5781]

My fav is radical rat i love funny rodents

[@Fidentt]

I expected a dead sound from brainrot to be like "what the sigma" "skibidi rizz" or something like that, lol

[@podejrzanyznak69]

I love mournmurus reference to Etg🧈

[@rfurthegamer3412]

It uses a lot of iconic sound effects, like the paper Mario stylish move sound effects

[@Alienboi2005vidsandstuff]

This will definitely enhance my Isaac experience