Save them all - drawing puzzle

Draw and help them. The line you draw will be 3D. From the rain, From rocks and bombs attacking, Please draw well and protect them. There are more than 600 levels in all! You can force it to unravel, or you can draw it beautifully to help. The lines you draw will save the world! EU / California users can opt-out under GRPR / CCPA. Please respond from the pop-up displayed when starting in the app or within the settings in the app.