Here is a complete, standalone HTML5 game file. It uses raw HTML5 Canvas and JavaScript to create a pseudo-3D endless runner engine inspired by Temple Run.
It features:
1. **Pseudo-3D Perspective**: Custom projection math to simulate depth.
2. **Procedural Generation**: Infinite track with coins, pillars, and barriers.
3. **Responsive Controls**: Swipe detection for mobile, Keyboard (WASD/Arrows) for desktop.
4. **Physics**: Lane changing, jumping (gravity), and collision detection.
5. **No Dependencies**: Pure code.
Save this code as an `.html` file (e.g., `runner.html`) and open it in any browser.
```html
Temple Rush HTML5
SCORE: 0
COINS: 0
Temple Rush
Avoid obstacles. Collect gold. Swipe or Arrow Keys to Move & Jump.