You are the dot in the middle of the screen. If you fall off a platform, you restart the level. WASD to move. Right and left arrow keys to turn/look right/left. Up and down arrow keys to look down/up, but there is a limit to the amount you can look up and down on purpose. Space to jump. All levels are possible, as I have completed them myself. Get to the green flag to complete the level! There are [10] levels. Also, have fun!
this is just a draft... so if you want to see the better one go to this link https://scratch.mit.edu/projects/132654464/ Thanks to @context for "World of Platforms 3D v1.0"