Super Mario Bros. 3 in 3 minutes - World Record Speedrun Explained

Chapters:
00:00 - Introduction
00:37 - 1-1, Hammer Bros.
02:08 - 1-2
02:43 - 1-3 to World 7
03:51 - Credits Warp
04:48 - Pipe clip, out of bounds
07:04 - Note block crash
08:02 - Stack underflow, RAM as code
10:39 - Shell manipulation
12:25 - What can go wrong?
13:39 - Recap, Conclusion

Thanks to Patreon subscribers:
Mittenz
rictic
Sam Rose
Kosmic
Znernicus
Tuo Padre
NOtoHOUtoSEAtoDENtoPA
vivas5
Kevin Nix
MackinawPeach
Jacher
KingIceCream
Punchmaster
Skyehoppers
Alan Finck
Billy Hansen
Veegie
Tungul
MrValdez
Martin Berrum
Billy Floyd
Francisco Beltran
Nikolai
Drew
CatCube
Alexander Roper
Mark S.
GTAce99
Dylan Sinnott
Curtis Fraley
Riku Rajaniemi
Jeremy Marquis
William Tryon
Shaheen Ghiassy
Robert Smith
Amanda Knipfing
Cosmicabuse
Nylaryx
Sophia Blue

[Bismuth]

Also, I forgot to mention OrangeExpo in the credits. He helped me figure out all the hammer bro stuff!

[kingofcrap]

Bismuth in 2023:
"To better understand the run, I decided to get the world record myself to figure out what was going on."

[LMMotoss]

“So the garbage on the screen is different than the garbage that is actually there”

This line is great, you got me right there

[samuelthecamel]

You know it's going to be good when the video is 5x longer than the run

[xxgioxx]

speedruns of fairly recent games: play well and learn all the strats
speedruns of really old games: *proceeds to break the fabric of reality*

[galacticgamer]

Mario breaking through the fabric of reality to rescue princess peach.

[WipZedKay]

''Yeah I got a PhD in Super Mariology, how could you tell?''

[timwangdev]

A CS degree is required for speedrunners nowadays.

[cowspawnerthecringeworthy]

So in order to speed run this game you have to LITERALLY REPROGRAM THE GAME USING RED KOOPA SHELLS?

[bane]

I've dealt with a lot of stack overflows, but this is one of the first times I've heard the term "stack underflow".

[DorkmasterFlek]

The fact that this wrong warp is actually doable by a human continues to astound me. Fantastic video!

[patrckhh]

I understood precisely none of that, but still found it fascinating.

[manopeace]

Game: your princess is in another castle

Mario: I AM the other castle

Game: sounds good to me

[DarkMatterKid]

The fact this doesn’t just hard crash almost immediately is by itself crazy, let alone the fact that it takes you to the end screen

[eggstatus]

The fact that the whole reason this skip is possible goes beyond the games code itself and all the way to manipulating the NES's CPU is just so goddamn cool


I can't stop rewatching this, its so fascinating how old tech works

[--_--_--_--_]

The stack: "do a barrel roll"
The Processor: "yeah, ok"
*the NES does a flip and the game crashes*

[nickvolpe]

Mario's like "ive had enough"
and just *breaks the fucking universe*

[erre]

Sweet, another speedrun PhD completed.

[martiddy]

Now I understand the Terminal Montage animation better haha

[polarbits]

I guess you could say we execute literal shellcode in this run