Make a 3D first-person shooter in one web page: a lone scout crosses an alien planet of crimson grass, giant glowing jellyfish mushrooms, pink crystal cliffs, shallow streams and a huge moon in the sky, to reach a crystal spire. WASD to move, mouse to aim, click to fire, right-click to aim down a holographic sight, R to reload, Shift to sprint. Show the rifle in my hands with an ammo counter on the gun, recoil, muzzle flash and a reload animation. Packs of lizard-like stalkers hunt me, and an alpha stalker guards the spire. Add a HUD with health and shield bars, a radar, an objective marker with distance and kill pop-ups, plus sound, a win screen and a game over screen. Make it look as close to a AAA game as you can. It should feel fun the moment it loads.