NOTE - IT WILL NOTE RUN ON SCRATCH. It will run too slowly on scratch open it on TurboWarp for better performance. Use this LINK: https://turbowarp.org/1367244297/fullscreen?fps=60 For POINTER-LOCK use this one: https://experiments.turbowarp.org/pointerlock/1367244297/fullscreen?fps=60 Move mouse to rotate camera. WASD keys to keys to move. Space to jump.
Credits to @FindingPepper3 for code and assets.