Thanks to Hou_Entertainment for the original idea. Hover your upper-right (left is optional) appendage over the device that consists of a wheel and two pressing points. Then use the second-longest sub-appendage and apply pressure downwards. Wait as the electrons send signals to your device's motherboard where it is then processed and creates an outcome on the screen of thousands of pixels. Now move the device in hand to the dot-lacking Bangladeshi flag and restart the process above. (But if you want it in summary, click the green flag)
Thanks to Hou_Entertainment for the original idea. Thanks to AK-007 for the original music. Thanks to Dhilly for (part of) the instructions. And of course thanks to J.K. Rowling for such a great series! This is my first Scratch project FYI.