Prompt
Rebuild "Twilight" as a separate, playable browser game using JavaScript, HTML, Canvas 2D, Browser. Preserve the observed gameplay: A three-level wordless platformer. Run and jump through field, forest and lighthouse stages, use the lantern to create respawn checkpoints, collect fireflies to brighten it, and complete the climb to the beacon. Use Claude Opus 5.5 only as the documented creator attribution; some games call DeepSeek at runtime, which is separate from the build-model claim. Use a scripted/demo fallback when the optional model or network is unavailable. Implement the source-observed start state, controls, rules, game-state transitions, progression and completion/failure feedback. Keep it self-contained and verify the behavior against https://github.com/swan4er/opus-100-projects/blob/main/051-twilight-platformer/README.md and https://github.com/swan4er/opus-100-projects/blob/main/051-twilight-platformer/index.html.
