You need to two devices to play. Because it's not a multiplayer game. The rules are the same as the board game Guess Who? Click a character to make their image disappear. Click it again so they come back. The character the other person is trying to guess is on the bottom right hand conner.
The original project was https://scratch.mit.edu/projects/938018514/. Not my coding. Thank you yaycookie5 for the original project Project Sekai Guess Who. The pictures are from google.