With Codex and GPT 5.5 you can just do things.

Description: This video demonstrates using Codex to run an AI-driven animation engine and rapidly prototype a simple video game. The creator walks through cloning a GitHub project with Codex, launching the demo, customizing characters and environment, adding sound from Suno.ai, and implementing basic game mechanics like enemies, health, and shooting. The emphasis is on speed and accessibility, showing that non-technical users can assemble interactive AI animations in minutes.

– Setup: Codex clones the repo, runs terminal commands, and launches the demo in about five minutes.
– Customization: Swap characters (wolf, dog, corgi), adjust meshes and environment, and request visual changes in real time.
– Audio & mechanics: Generate background music, add sound effects, and integrate enemy AI, health, and shooting to create a playable build.
– Overall: A practical walkthrough illustrating how AI tools lower the barrier to prototyping real-time animation and simple games.

Quotes:

Oh my god, Codex is actually insane.

I was able to get it running in about 5 minutes using Codex.

So, now we’re playing with a dog in a video game.