Students make pairs, one facing the board and one facing away. The student facing away from the board is the one who will be drawing, preferably on a tablet using Paint. (Paper also works if you play without using colours.)
The teacher draws a picture made of simple shapes on the board. The student who can see the picture has to try and explain to the other student how to draw this picture. For example "Draw a red circle. Now, on top, draw a green line going up and down." (I have made a worksheet for students to refer to when explaining if needed.)
The student who is explaining must not look at the drawing student's tablet.
Once the timer is up, the pair can check the board and tablet to see how close they were!
Note: It is usually a good idea to review the basic shapes and directions included in the power point before starting. You can leave this review up on the board while playing for extra support. This makes students feel more confident giving explanations, and less likely to fall into using Japanese.
I work in a SHS and did this with my ESS club and it was a HIT! There were 4 members and myself so we decided to have one person draw on the board, one person draw on the paper, and three people work together to relay the information to the paper drawer. They had so much fun working together to explain stuff, so if you have a smaller group like I did it's definitely worth trying it out that way!