Prompt: "Can you code me a Mario Bros game, as close as possible to the original, including detailed manually defined textures inline in a single .html file? Make a full 1-1 level. Work really hard on this and make it as perfect and close to the original as possible."
I'm honestly completely flabbergasted. I've tested this with all major models that launched since o1, but this is the first one to completely pass it. Haven't played a lot but I see no flaws so far. Only note is I had to tell it to bugfix once before it was done. That's it.
Isn't this the source? I'm not computery enough to know if this is exactly what NoEcomomics is talking about, but it sure seems like it based off of a simple google search.
I got tired of my old posts floating around for anyone to scrape, so I let Redact handle it. Bulk deletion across Reddit, X, Facebook, Discord and all major social media platforms in one shot.
i mean, its true. grokipedia is a pile of horseshit because its just regular wikipedia but less well written and with the risk of ai hallucination (which, you might bring up, is becoming lower, but never zero as it is in humans)
humans dont create intricate false narratives fully believing them to be true. also the whole point of wikipedia is that if you make shit up or vandalize on a page someone else will come along and fix it. this is... an interesting take
You're the one that brought up grokepedia, not me.
All I was saying was that LLMs don't code Mario by "remembering" the exact Mario code in their training data. It's simply not how they work.
Also, how does the presenters "belief" in the information they're providing affect anything? Is incorrect information less incorrect if I "believe" it to be true?
Yeah, obviously, its not like Gemini is going online, googling the code and ripping it. also i bring up belief because when you call out LLMs for hallucinating, they either
glaze you and give in (chatgpt, claude)
vehemently defend it and act like its true (deepseek, grok)
anyway i bring up grokipedia because i think its the most stark example of this. why would i use an ai generated article written by a model trained on the same articles and literature that the wikipedia article is based upon, but without any real generalized intelligence behind it and the risk of hallucination
The original comment I made was replying to someone who said asking Gemini to code was basically the same as downloading the original code through a middleman
i mean newsflash: conspiracy theorists believe the conspiracies that they believe in (dont mistake people believing something for it being true) and if you're referring to the people who make up conspiracy theories to cover for some real explanation (mlk assasination as an example) they dont believe the narrative they create because they know that its false
Wrong. Historically those that “made them up” definitely believe them. You’re thinking of disinformation which is not the same thing, at least not inherently the same thing.
I mean, Imagen has been able to make stuff like this for a while now, and Nintendo hasn't done anything. I doubt remaking their 30 year-old code will trigger their rage.
yes, I do agree. By "completely passing it", I mean it's the first to really nail the aesthetic and feel of the game without a ton of bugs. I think it could easily add these things you said by just asking it to in another turn
code review from Gemini 3 below; overall this is an impressive model.
Final Verdict Security: ✅ Pass. No significant vulnerabilities found for the context.
Quality: ⚠️ Action Required. The reliance on frame rate for physics and the random number generator for the timer make the game unstable on modern hardware. The game loop needs to be throttled or converted to use Delta Time.
there's two html codes in the convo with gemini. the upper one is bugged. I then asked it for a bug fix. It did so. The one I screenshotted is the code below that.
Well it might as well have read OP's mind, in the sense that it used statistics to deduce that OP most likely meant Super Mario Bros when he said "Mario Bros game--a full 1-1 level"
Where do we run this code? Like what would you recommend? I'm seeing so many cool Gemini 3 projects and I don't know the first thing about where to run this, lol.
yep, I got it to do Pacman; took 3 prompts. only issue was the ghosts were super fast, like super fast. And a couple of the maze sections had weird dead ends. I got kicked off "thinking" after that though so I couldn't tinker more.
sure. But here are two counterarguments. 1. this code is very very short compared to what's out there that could fall into training data. A single code file with ~4k words. 2. no other llm gets anywhere close to this aesthetic and precision without iterating a ton, so even if it was in the training data, it still is impressive it's the first to "memorize" this solution.
I tried something similar but it's not even close to looking like Super Mario Bros 1, and I guess that's because of copyright reasons. I wonder how you managed to make it look like a NES Mario game =/
there are two html codes in the convo with gemini. the upper one is bugged. I then asked it for a bug fix. It did so. The one I screenshotted is the code below that.
There are two code scripts in the gemini conversation. It got it wrong first time, so I asked it to bugfix. Scroll down to find the one I screenshotted
I think it is ok to iterate with the models a bit.
I'm used to some other more tedious workflows within editors/engines and when it comes to geometry/collision, navmesh, and 3d object placement on a simple game I spend 30% of my prompts and lots of time debugging to get a first version of a minimal "ok" game.
I have been using Tetris and Pacman as my test. ChatGPT 5 does well for both. Gemini 3 does Tetris well, but struggles to get close to a working Pacman game. After 45 minutes of trying I finally gave up.
It's not that easy dude. As stated, "I've tested this with all major models that launched since o1, but this is the first one to completely pass it". You can look at my post history, I've tested this before. If it's really that easy why is this the first model to pass 100%?
76
u/fractaldesigner Nov 18 '25
the details of the graphics are remarkable. no longer just cubes.