I made a 2.5D platformer in three.js that runs in the browser, phones included

Play it here, free and with no install: https://mara.davidpalmero.dev Some details: \- The title screen shows first and the 3D scene is built behind it. On a simulated 4G connection the title appears in about 3 s instead of 30. Lighthouse 99-100. \- The 44 3D models are generated by Blender Python scripts and exported as glTF. \- The music and sound effects are generated live with Web Audio, and the music changes as you play. \- 165 automated checks, plus Playwright bots that play every level on every difficulty. \- On my Radeon the map rendered black because of invalid values in a few shaders. If the WebGL context is lost, it now rebuilds the renderer one quality level lower. I directed it and tested it on my phone and PC. The code, models and music were made by Claude Code agents working from my specs. How it was made: https://davidpalmero.dev/mara-vey.html I'm working on World 2, so I'd love to hear how it runs on your device and where you got stuck.