The Goomba nobody knew existed can't be killed

It's called the Mystery Goomba, and for almost two decades no one knew it existed. In Super Mario 64, gamer pannenkoek2012 noticed that something was off: a Goomba was represented on the counter but not displayed in the level. Such set off a mission to find this Goomba, and in doing so he discovered that it can't be killed. The …