The story of Ghost Black reads like a fable to me. In a setting where you normally have to struggle and grind your way through a game to eventually become the ultimate trainer, you are given an awesome, yet clearly evil power. Fights that once got your heart pounding as you traded attacks with opposing trainers, desperately hoping you would be the victor, are now pathetic wastes of time as your Curse ability lays waste to even the strongest Pokemon. Then, once you have demonstrated your power, you get to decide the fate of your crushed opponent, who were previously untouchable. Perhaps they were that one particular trainer that you had to fight to proceed down a certain route, or maybe it was a Gym Leader who thwarted your every attempt on your first playthrough as a child. Regardless of your motives, the choice is clear and simple. Live or die. They are completely at your mercy.
It quickly becomes clear that you have the final word in this world. But the game is always watching you, remembering every time you sealed the fate of an opposing Pokemon or a fellow trainer with the Curse. Finally, just as you think you are the new ultimate power, the game walks you back through your footsteps, showing you the spots where you pointlessly ended the life of another human being. Drunk with power, you didn't realize the devastation you left in your wake. As a sickening realization dawns on you, it abandons all subtlety and lists every single life you snuffed out.
When the list of your misdeeds finally comes to an end, the game casts judgement on you. In its darkest moment yet, the game forces you to sap your own life force until the Ghost takes you, too, with the Curse. Your save file is erased. You cannot go back on your lifelong history of destruction. Your punishment is bleak and final.
When I watched the Youtube video of this story, it sent a chill up my spine. I realized that I would have been the final recipient of the Ghost's curse as well. I think a real version of this game should include an alternate ending - if you don't use Curse during the whole course of the game, Ghost does not Curse you. Rather, he either lets you live just as you think he is going to curse you, or he takes you to the afterlife. I think the second option is more in tune with the Pokemon series' emphasis on collection. You, too, are collected, but not in the morbid way that the 'original' ending had it. And that way, when you think about your games in ten or twenty years, you can rest content knowing that your character lives on.