What if there was a Super Mario Bros. 4? 

I know about Super Mario World

Now you just have to play Super Mario Bros. 5 up through Super Mario Bros. 63 and you'll be all caught up.

5:00 is just an alternate ending --- Mario decided to live there.

1:22 His expression when he jumps on the spiny is glorious

I have so many questions about the design decisions. Why did they turn Buzzy Beetles into stompable Spinies that are basically just Goombas? I thought they were going to have Lakitu throw something else, but he doesn't. Why are all the water levels designed like normal levels? What's with the random curtain pole things that never seem to be placed anywhere important? Why does the first world have a warp instead of a boss, but not the rest? Why are there trees on the water? Why is there more water in the water? Why are there invincibility shells? Why?!

Great game, the only things that seem to be missing are bonus areas through pipes and traditional 1ups. Real heroes would never get soft locked in challenging sections that require wall jumps, but needing to kill enemies before the flag is an odd presumed glitch correction. These original style smb hacks are my absolute favorite, thanks for playing as always 🌟

if mario series took similar approach to making sequels as mega man

“You know what they say: not all heroes are real.” - Kosmic 2022

8:35 HE SAID “ayo whaddup” TO THE ONE BLACK TOAD LMFAOOOO

All those Toad sprites in the levels weird me out, because Toad seems like an element you should be able to interact with lol

If there was super mario bros 4, I'm sure it would look similar to smb3, except with less power ups and a new companion/sidekick character that would be kinda one of the reasons they are going against king koopa. They would be like a power up but when eating something specific, like berries or idk... Koopa shells. Oh yea! 2 brand new colors for koopas most likely and they would lose their shells when mario jump on them. But that's crazy... Too bad nintendo never made a mario game like that 🤔

They should add Blower to Mario Kart 8 Deluxe.

I wonder how many fangames/romhacks/etc there are with the name "Super Mario Bros 4". Probably a lot. : P

Keep these mario hack videos going, it's really one of the only things I look forward in RU-vid these days.

Love watching these live, but somehow you manage to make the videos so entertaining that I’ll watch them anyway, even if I watched the stream! Great job!

25:50 Water in the fire, why? Also, really like the white pipes in Worlds 7 and 8.

So once again i didn't know how to rate this Romhack but the Coins on the Stairs deserve an 11/10 for Creativity. You were 100% right. Some say the Creators of this Hack had a Kosmic-Brain ✨

Super Mario World says hello lol

I bet they gonna keep making these until we hit 64

How did no one make a joke about Blower's first name being Richard.

I love the green larva, looks like toxic waste. The blue larva just looks like river or just water. That's creative!

ROM Hack Wednesday?! That's like my favorite day! Especially when it's on Wednesday!

19:15 Fix it Felix ''Why do I fix everything I touch?'' vibes.

0:25 what’s with those 2 toads just chilling by the large munchers

15:50 Underwater castle, last seen in SMB2(JP), and even then without Bowser... 16:25 ... going straight into non-dash-4 castle. 21:00 Imagine one of those made such that the ceilings are low enough that, once you start bouncing, you can't escape. Why am I like this? 25:00 The Spongebob-esque Blue Lagoon 'water under water' effect.

I like the Daisy w/a green hairs dye and matching lip gloss. ;D

Kosmic: _What if there was a Super Mario Bros. 4?_ Super Mario World: *am i a joke to you*

Every sane person ever: water Kosmic: *blue lava*

I kinda like the outdoor castle stages. The color palette looks very winter-y, like everything is covered in snow. It’d look great for a Christmas hack

There is a Super Mario Bros 4. When it was released in Japan it was called Super Mario Bros 4, but then when it got an international release the next year the games official name was permanently changed to Super Mario World.

Honestly, given that these are all fan made hacks, I'm surprised there aren't more soft-locks. Sad that it happened when it did. I liked that chamber in the stairs. :-)

There’s the 1990 Super Bros. 4 bootleg if that counts. Also Super Mario World I forgor 💀

my house could be on fire and i'ld still want to watch kosmic

Those chains of brown balls that you can climb on are actually an unused object that exists in the original game and Lost Levels’ source code. They were originally intended to hang from the tree tops a-la Donkey Kong Junior.

I love that in Mario Maker you can have a Lakitu that throws Hammer Bros I just can't get over that

What if they kept making Super Mario Bros.'s all the way until Super Mario Bros. 35?

I wonder if there is a hidden warp to world 7 somewhere in the game.

Well, this was really a video. The hack was entertaining in an entertaining way that I can't even describe, but I'm glad I watched it, I'm pretty sure!

lost levels did have a sequel, it's called Super Mario Bros. 3.

I wish Super Mario Bros game where strange things happen. When you touch an enemy, you don't die, but you teleportings to the beginning of the level or to another level entirely.

In Japan SMW was called SMB.4

I don't know if there is an area to recommend levels, but you should play Super Mario Skycastle, if you haven't already. One of the best Super Mario Bros hacks I've seen

1-Super Mario Bros 2-The Lost Levels 3-Super Mario Bros. 2 4-Super Mario Bros. 3

Calling the water “Blue Lava” is like calling the lava “Red Water” lol!

Wouldn’t it be “Shellman” or “Shell Man” I guess

Gotta admit, sequel to a game that doesn't exist is p fire romhack idea. Now someone just needs to make Mario 256

The mushrooms are winking

1:23 lol I had the EXACT same reaction 😂

love how mario has 3 arms in the thumbnail

To that Tonichu in the Twitch chat at 13:13, I like Daisy! She's a tomboy princess; what's not to love?

Why does Mario have three hands on the thumbnail? One hand throwing a fireball..... but two hands growing out of his knees?

Kosmic I love you man, please keep being you

Powershell? Super Mario 4 confirms that Mario is a Windows admin.

17:03 lmbo, he made a low ceiling fast jump rope (more like a jump nope, lmbo), surprised he made it out unscathed 😂😂

All of those water stages feel like a mistake to me.

Super Mario bros: original game Super Mario Bros 2/The Lost Level: The same game but difficult Super Mario Bros 2/U.S.A.: game different from all the others Super Mario Bros 3: Original game with the classic features of 2D super Mario games Super Mario Bros 4: ok I like Super Mario Bros the lost level

I am waiting every Wednesday!

Would you considering making a video tutorial on how to perform the infinite lives trick with the koopa on the staircase?

Rom hack Wednesday is the perfect way for me to know it’s Wednesday

There's already a 4th one. Super Mario world was called super Mario bros 4 in Japan

Green lava, or the original was orange poison all along..

we have red lava, blue lava and green lava, now let's wait for super mario bros. 5 to add yellow lava

"I don't why there is foliage growing on blue lava in this hack but whatever." **Casually ignores the faceless Toads.**

2: Lost Levels 3: Forgotten Worlds 4: Lobotomised Kingdoms

Hey, this isn't Mario 4: A Space Odyssey!

The name BLOWER for Red Bowser made me laugh every time

water: ... kosmic: blue lava

Actually, the Nelsonic Game Watch version of Super Mario World was released internationally as Super Mario Bros. 4, and is therefore Super Mario Bros. 4 technically does exist, even outside of Japan. (fact that I learned from jan Misali)

Coins on the stairs is revolutionary…

Clouds are always under the water! It's in the instruction manual with the dome over the flat Earth that sits on the pillars. The water is above the dome. Clouds are under it. So this level is next to the dome. It's a space level!

My head canon is green = acid. And wow, near the end there. You sounded like the “they’re gonna know” “how will they know?” Audio meme (is that a thing? I’m making it a thing) lol

Bro the spreadsheet you have is so cool and a really great idea

The impossible wall had a very obvious pipe before it, and the bullet bill was the intended way over, I think.

I'd like to see a proper sequel to Super Mario Bros. 2, with the same main characters and gameplay but with a few plot twists and added features.

3:05 poison from mario maker 2

Bowser couldn't build the castle that's impossible to navigate because it would also be impossible for him to navigate it. Mario's an intruder who's not supposed to be on his property the same as if I came to your house and started rummaging through your stuff. You wouldn't build your house impossible to navigate just because someone got into your house...

bruh, super mario bros 4 is super mario world man

Awesome!!! Wish there was SMB 5

Pretty sure Bowser’s brother, Blower, was the true owner of the Super Crown

What is your favorite color of green lava?

There was one, called Rambo Edition

This isn't too farfetched, considering Super Mario Bros, Super Mario Bros 2 (jpn), Vs Super Mario Bros, All Night Nippon SMB and SMB.Special exist.

I would assume a "mario 4" would've looked a little more like Mario 3

Just imagine! I think it would be called something like Super Mario Bros 4: Super Mario World, but only in Japan. But I'm just guessing....

There's definitely a bit of jank to the level design, but there are also some pretty neat design ideas too.

In Japan, Super Mario World is: "Super Mario world: Super Mario Bros 4" So technically is DOES exist. 🤷

26:42 Editing is on point...

Super Mario Bros. Super Mario Bros. 2: The Lost Levels Super Mario Bros. 3: The Forgotten Worlds Super Mario Bros. 4: ????

A super Mario bros 4 wouldn’t even look like that.

There is. It was released in 1990.

As much as I really like this hack, sometimes it really looks like its being help together by duct tape. Sure the level design is really well done, but having the game softlock after touching the flag sometimes? yeah.

love how he called the lost levels "the forgotten worlds"

I love it. Liking, commenting, and already subscribed!

8:35 Black toad!!!!!!!

You guys are clearly missing out on the incredible 1990 Super Mario 4... Which is just a bootleg conversion of The Lost Levels onto the original Famicom.

Wow, can I actually download and play this game. This game looks awesome.

thats some good level design tho

There already is one. Super Mario World is called Super Mario Bros. 4 in Japan.

What if.... ? What are you talking about? Super Mario World was called Super Mario Bros 4 as well. Look it up!

Hi tamagotchi mario at 0:33