I coded this to show off how cool and LAGGY terrain generation is. Use W and S to go Forwards and Backwards. Use the Up and Down Arrow Keys to look up and down. Use the Left and Right Arrow Keys to look left and right. Hold the Space Key to fly up. Hold thew Space and Shift Keys to fly down. Note: None of the lagginess or you being annoyed applies when you are playing it on TurboWarp... So go play it on TurboWarp.
Thanks to Finding Pepper for the awesome tutorial on how to make a 3D Terrain Generator! Check him out here: https://scratch.mit.edu/users/FindingPepper3/