Descriptions:
Peter Yang walks through the complete process of building a playable retro 2D space shooter using Claude Code, from an empty project folder to a shipped browser game, in roughly 20 minutes of active work. The tutorial is organized into five steps — project setup, asset sourcing, spec drafting, milestone-based building, and cleanup — and is explicitly designed for beginners, with Yang noting his seven-year-old daughter builds games the same way.
The workflow uses Cursor as the IDE and launches Claude Code with the `–dangerously-skip-permissions` flag so the agent can read, write, and execute files without manual approval on each action. Yang sources a pixel art pack from creator Animus on itch.io and uses Whisper Flow voice dictation to communicate instructions to Claude hands-free. A key technique is structuring the spec into three discrete milestones — core combat, power-up progression, and boss battles — so Claude builds incrementally rather than attempting to one-shot the full game. Milestone one produces a playable localhost version in under five minutes of generation time.
The video covers practical pitfalls: Claude’s tendency to over-engineer specs is addressed by manually trimming unnecessary items before build starts, and asset availability for boss battles prompts a mid-session search through the pixel pack’s legacy collection. Nano Banana is used when appropriate pre-made art cannot be found. Time estimates throughout (two minutes for milestone one generation, three minutes for planning) give viewers a realistic sense of the pace of vibe-coding a complete game project.
📺 Source: Peter Yang · Published January 21, 2026
🏷️ Format: Hands On Build
