How did I fly a Mobula 7 upside down? The answer is 3D mode. Betaflight and BLHeli support 3D mode, which means you can make the motors reverse themselves in flight. And this lets you fly UPSIDE DOWN. In this video, I'm going to show you how easy it is to set up 3D mode on the quad you're flying right now. You don't need any special equipment. So if you've always wanted to try out 3D mode, now is the time!