The classic game of rock paper scissors where the micro:bit display a different symbol when shaken.
The program starts with a rule that uses
a shake event and 3-face dice is cast. The result is stored in variable X.
- when
shake, do 
set variable X to 
random number between 1 and 
3.
- when shake, do
play sound 
hello.
The next 3 rules match the value passed in variable X
and display a different symbol for each value, 1, 2 or 3.
- when
variable Xchanges to
1, do 
show image paper.
- when variable
Xchanges to
2, do show image rock.
- when variable
Xchanges to 3, do show image scissors.
improvement ideas
- increase the range of the dice and add more images!