Marble Madness remake in 3D

An arcade game AR | Build Notes built with Claude Opus 5.5. Copy the exact prompt free.

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by AR | Build Notes (@agent_republic)FreeOpus 5.5 game prompts

@agent_republic built this with Claude Opus 5.5 and shared the one-shot prompt on X; it is quoted below word for word. 🎱 CLAUDE OPUS 5.5 - one-shot game! Marble Madness is back — and it's free, in your browser, with nothing to download. Six floating courses. Real 3D graphics. Physics that behave like an actual rolling glass marble. Pistons, acid pools, launch pads, icy chutes, black steel balls, a pinball funhouse, and a final Gauntlet where you have to duck into an alcove while a steel ball rolls at you. The part that still blows my mind: it was built in ONE shot. Claude Opus 5.5, working in Claude Code, got a single short request — "analyze this old 2D version and write a better one" — and came back with The original post had 639 views. The creator gave Claude an old 2D version of the game to analyse.

The prompt

analyze this old 2D version and write a better one

Prompt by AR | Build Notes (@agent_republic), quoted word for word from the original post. Model as stated by the creator; your result will differ.

What’s inside

  1. Copy the prompt below, or download it as a SKILL.md
  2. Paste it into Claude Opus 5.5, ideally in Claude Code so it can write, run and test the game
  3. Swap in your own theme, characters or rules where the prompt names theirs
  4. Play it, then ask for fixes and polish in plain words

What you’ll bring

  • Claude Opus 5.5 (Claude Code, or a Claude chat for single-file HTML games)
  • A browser to play the result
  • Your own twist on the idea, if you want one

What you’ll get

  • A playable browser game in the spirit of the one above, written by Claude
  • The code, which you can keep editing

Perfect for

  • Anyone who wants to make a game without coding
  • Developers testing what Opus 5.5 can build
  • Teachers and parents making a game with kids

Also found as

opus 5.5 game prompt · claude game prompt · one shot game prompt · arcade & puzzle · marble madness remake in 3d

Questions

What is Marble Madness remake in 3D?

Marble Madness remake in 3D is an arcade game that AR (@agent_republic) built with Claude Opus 5.5. This page quotes the prompt they shared, word for word.

Who made it, and where was the prompt shared?

AR (@agent_republic) made it and shared the prompt on X: https://x.com/agent_republic/status/2104695709572190529. You can find more from them at https://x.com/agent_republic.

How do I use the prompt?

1. Copy the prompt below, or download it as a SKILL.md. 2. Paste it into Claude Opus 5.5, ideally in Claude Code so it can write, run and test the game. 3. Swap in your own theme, characters or rules where the prompt names theirs. 4. Play it, then ask for fixes and polish in plain words.

Is it free?

Yes. Copying the prompt and downloading the SKILL.md costs nothing on Omo. You run it with your own access to Claude Opus 5.5.

The video and the prompt belong to AR | Build Notes. Omo lists them free, with credit and a link to the original post. Creators can ask us to remove a listing at omo.space/support.