WASD to move around. Space is up. Z is down. Drag mouse to change perspective. Slider controls speed of movement. To load your own OBJ model: 1. Make sure the file doesn't have tabs 2. Press o 3. Right click the list and click import to select your file 4. Click See inside if right click doesn't work 5. Press o again When removing tabs be sure to replace them with spaces. Tabs break scratch's import mechanism.
Consider using turbowarp https://turbowarp.org/563778627/fullscreen?interpolate&hqpen&clones=Infinity&offscreen&limitless I ported some of my python code to make this work. The OBJ reader is made for scratch though.