Bomb Defuse Simulator

How to play:
At the start the bomb generates the random code of 4 numbers from 0 to 3.
The each button on the screen represents a number.
F = 0
G = 1
H = 2
J = 3
If you press the right button, the led (debugger) blinks and you can press the next button.
If you press the wrong button, the led won't blink and you have to type the code from the start again.
When you have pressed all the buttons in the right order the led turns off. That means that you have defused the bomb.
If the time is up, the bomb will explode.
I haven't done the win/lose screen to make the game look more realistic.