How People Reprogram Games...with a CONTROLLER 

Something I used to think about as a kid was "I bet if I mash enough buttons fast enough I'll eventually find some obscure exploit that will let me do literally anything" and i am OVERJOYED that that is in fact true.

"Whats your game engine?" super mario world

Super Mario World was really the first Maker-type game, they just really needed to step it up with accessibility

Thanks for featuring Triforce%! And yeah, the other comments about the editing quality are right. For example, you have a two-second zoom-out from the room transition in Kokiri Forest. You had to set up the OoT decomp on your computer to get the assets, learn enough fast64 to import the scene into Blender, hide the collision mesh, fix the Z fighting on the paths, set up some basic lighting, animate the camera fly, and render it. And that's for a random two second shot!

9:13 love how recognizable Carl is, i can practically hear him laughing lol

The lengths fans take with Nintendo's games is beyond fascinating. Unfortunately, all the Big N did is to view such passion projects as utter heresy and unfairly tar them as "piracy".

If a modern game had an arbitary code execution bug it would be called a security vunarablity.

God forbid we find out we're in the matrix, these folk would turn reality to Dig Dug.

15:41 ayyyy it’s me! extremely good video. the explanations, visuals and examples were all spot on. nice job!

I think youtube algorithm was heavily improved in 2024, best time to start having a RU-vid channel with just good content.

I'm actually surprised at how well edited this is for a small channel!

Thank you for not ruining this video by turning it into a 30+ minute long circle talking session with per-word subtitles

“1000 points to GlitchDoctor” - Drew Carey, probably

I've been a fan of ACE for a long time so I'm happy to see someone cover this.

I'll never be able to escape Ocarina of time ACE

they made mario maker in 1990 and no one noticed

The Triforce% segment was so incredibly well done that it hit all the right notes in me as a Zelda fan so I was left helplessly emotional and I had rarely cried so much. It was truly a work of art.

The speedrunning and TAS community never cease to amaze me

I saw the Triforce% a few days after it happened online, and had no idea what was happening or the significance, now that I know I'm honestly pretty amazed.

This is a very well researched and documented video, I really enjoyed it. Bonus thanks for including the original GDQ videos in your description!

Man this is well edited, hope you'll make it!

Really awesome video about ACE, I love it! Great job GlitchDoctor

It's so surreal hearing about raocow outside of his community or the talkhaus.

That was a really good video man! I really liked the in-depth explanation about SMW!

actually taught me a fair bit about this, I knew this kind of stuff was possible but never knew much about it. Great video!

Nah but to be honest this video was very bittersweet, especially the ending with all the messages and custom models and music playing....

I'm highly impressed with the quality of your videos for such a small channel. I have a feeling you're gonna blow up. Remember us when you're thousands of subscribers into your RU-vid career :)

very nice video, really good information laid out in a easy to understand way. good work!

Your editing skills have gotten so good. Enjoyed the video!

This my style of videos. I'm pleased that it showd up!

Time to port my games to ocarina of time

That stuff at the end was ABSOLUTELY bonkers!

"Program a video game?? Pfft. That's too easy. I programmed a video game IN A VIDEOGAME." - these absolute legends

Fascinating. Thanks for making this video!

Some people think computers are smart, but really they're just rocks that humans tricked into doing math. As such computers only do exactly what they're told to, regardless if what they do is what the developers intended. That said, computers were much more limited back in the day, in both processing power and memory, so developers often had to cut corners to get it to work adequately, neglecting checks, causing potential for unintended behavior. Conversely, including a lot of checks to make sure those unintended behaviors don't happen requires more computing power and more memory, which were both very limited back in the day. All that said, ACE is considered a major security vulnerability, so be very careful when attempting it yourself, as one wrong move could brick your system, or worse.

Thanks, algorithm. These type of videos are my kinda jam.

1:31 CAT PLANEEEEEET

ACE on the NES: 😎 ☀️ ACE on Windows: ☠️ 🔥

Awesome video! I kinda already understood ACE but Ill still watch any video about it cause its so damn cool lol. It doesnt take much to make me happy lol, give me any kind of speedrun breakdown and Ill be there. Only thing I could say about this video is I wish it was longer lol, this could have been 4-5 hours and I just woulda thought "hell yeah this is what Im doing today" lol.

Realy Nice good video! Keep the quality up and you make it one day

i never even thought about if ACE would we a thing in old games, but man that is the coolest thing I've ever seen

This is a seriously underrated video!

Wow great video dude! Earned yourself a new sub :) 10k soon! :D

Hi @glitchdoctor. TAS is a recurisve acronym. it stands for TAS assisted speedrun.

Awesome Video Bro!!

This is by far beyond jaw dropping. Just imagine, in the future, with better tools and more understanding of technology, what future generations will be able to accomplish using similar methods with current day games? Like turning Ace Combat 7 into a text-based dungeon crawler, or turning Cyberpunk into a flight simulator. Damn.

I created the "TASBot" hardware for SNES shown at AGDQ 2014 and in this video. The original NES / SNES "TASBot" was not a Raspberry Pi. It could be hooked up to one, but was not dependent on one. The board contained a PIC32MX microcontroller and some diode level shifting to interface with the SNES. The MCU controlled the 4 data lines in response to clock and latch signals. A computer connected to and powered the board with USB, and fed the MCU an input stream. The MCU would buffer several inputs (don't remember exactly how many) for 8 total controllers - this run was dual multitap so we could say we did it with 8 controllers, though for technical reasons it's actually faster with just 4... The white PCB that ROB is holding with the flashing LED is the device I designed and made. Masterjun had to modify the run shown at the event due to buffering and timing limitations with my device. This was new territory for us and I was new to embedded hardware at the time. It was fun debugging this, and cool to be the first person other than Masterjun to see this run =) I received no credit nor mention at the event despite doing the hardware, firmware, and loader software. If you have questions about the device, I can try to remember and answer them.

amazing video!

Got recommended this right after watching Hunter R's video on ACE yesterday. Pretty cool to see another video just like it

you deserve more subs. subscribed!

You summoned the Brazil guys. Brace yourself.

The reason why controller input is read is because when you move your character or interact with anything hexadecimal addresses are modified, when you overflow these buffers you can cause it to read bad code but if you do specific things the code is different. That's how they write the pay load they by doing specific actions and then trigger it by overloading a buffer and having it read the payload that was created by doing the weird things it was slowly storing that data in a place in memory that you can read to later.

9:53 Also, killing the fake bowsers spawned a living enemy

I'd love to see how people that did bug testing and QA for the game react to these feats

I didnt understand most stuff but nice video! these people are insane

you got one new fan

great video!!

Still holding my hope for you recreating the old glitch videos, but I still like these new ones.

The Super Snake Bros and Pongio are just awesome

Some peoples brains just work differently, I cannot fathom how they were able to come up with these methods.

Glitch doctor can you do a video on Wind Waker or Tak and the Power of Juju both on GameCube? Both those games have awesome glitches/speed run strategies

I find it funny how most speed run tactic is "do 30 pointless things to make those pointless things make you spontaneously win because code did a goofy"

My brain melted trying to comprehend this.

Raocow mentioned!

groovy dude!

Similar to how I found out you can have (basically) infinite slow motion time in Skyrim with the shield perk that slows down time during enemy power attacks. Simply mash the shield button as it's happening and sometimes it works. Entering a building, waiting, doing anything that loads something deactivates it. I didn't explore it much because I was 15

I like to imagine that the SMW Snake Glitch was actually an easter egg left from a dev working on the orginal game.

Minecraft has a lot of this with wierd chunk loading and stuff. People have been able to exploit the rng from the fortune enchant and like what mobs come out of a portal to get insane levels of loot.

9:09 'at the time' this is still amazing

Keep it up!

This is insane

That's insane. Great.

5:20 me understands everything perfectly 5:29 the video creator saying otherwise lol

this will never not fascinate me, closest thing to real magic to me

This is how I know we're not living in a simulation. Someone would have broken it already.

dude, image waking up in a virtual world where you're trapped in it, and you find a glitch where you can hack the whole world from it, and eventually get out from it.

I always wanted to break open joycons or the pro controller, solder some wires into the button contacts and use it as a TAS tool. But I don't have enough skill to do it without breaking Switch, the controller or the rasppi/arduino I'd be using for the TAS. And I don't have $$$ to experiment.

Wait, what the heck, raocow is the source of the SMW glitch that allows ACE? Been watching that guy for over a decade, that is _wild._

What these guys do with old consoles make Nintendo be in shame, they would never achieve something like this

My reaction to that information: 5:30 😟

It’s not similar to how a hacker would break into a system. It is the exact process by which hackers break into computers. It is literally the same thing as standard exploitation / hacking.

underrated

who need romhacking when we can have romhacking 2

"It wouldn't run the same code that an active Rock would" Bro, why are you rocks running code? 😂

A.C.E. is one of my favorite things of all time.

colin mockery as the controller and ryan styles as the cartridge was well played youtube editor person

Genius!

All this was accelerated ahead of schedule because raocow played the VIP series.

so, in theory, this is possible with, anything...

Now, every game is a sandbox

nice. and naturally it has a sethbling clip c:

good video

I love this kind of shit with gaming

7:58 this was the first ace i discovered, and i dindn't belive it. no seriously, this was too crazy to me and i was feeling suspicious but as a programmer and decompiler i belive it... some how

Even with TAS this is some incredible work, Like how TF is someone playing Snake or Pong in SMW, honestly i wish i had the iq to do that😢

This is the first video I've ever watched from you and I'm mildly disappointed that you didn't use SiivaGunner's version of the athletic theme. Because you're named Glitch Doctor.

Wait masterjun was into this stuff too? i knew him because he made sparta remixes back then

If you want a good example of ACE, I'ld recomend Bismuth's "SMB3 Wrong Warp Explained".

"Running Doom in Super Mario World"

Shout-outs to 2 years ago me for playing Kirby superstar and randomly execute some arbitrary code to warp to marx randomly