This River Ride game uses HTML, CSS, and JavaScript.

• HTML5 — the page structure, <canvas>, HUD, modal, buttons.

• CSS3 — embedded <style> and inline styles for layout/overlay.

• JavaScript (ES6+) — all game logic, using:

  • Canvas 2D API (rendering)

  • Web Audio API (SFX + music)

  • Fullscreen API (toggle on F)

  • requestAnimationFrame, localStorage, pointer/keyboard events, etc.