Super Mario Quits
If you’re going to quit your job as a programmer, the best way to resign is to create a virus that destroys your company’s system from the inside. Make sure the virus goes live after you’ve left; that way, it will be forced to pay a premium fee to get you to fix the problem.
Or you can do what this guy did and create a Super Mario game from scratch. The kicker is that whenever the player eats a mushroom, their character doesn’t get taller—instead, an “I QUIT!” textbox appears and blinds you with its violently blue background.