mb2.py

from microbit import *
from random import randint

a = randint(0,4)
b = randint(0,4)

chrono =  running_time()

display.set_pixel(a,b,9)
i = 12

while True:
    if running_time() - chrono > 10*1000 :
      display.clear()
      display.show(Image.SAD)
      break
    
   
      
  
    x = i % 5
    y = i // 5
    display.set_pixel(x,y,9)
    if button_a.was_pressed():
        display.set_pixel(x,y,0)
        i = i - 1
        if i < 0 : 
            i = 0
    if button_b.was_pressed():
        display.set_pixel(x,y,0)
        i = i + 1
        if i > 24 :
            i = 24
            
    if x == a and y == b :
        display.clear()
        display.show(Image.HAPPY)
        break