Talk:Luna Game/@comment-1713909-20120407190426

There apparently IS a story for this, but most of it is speculation.

Apparently. Luna fell under the influence of Nightmare Moon again, and it caused her to murder Pinkie Pie.

Pinkie Pie's spirit apparently fused with the God of Corruption (Zalgo), and thirsts for revenge. However, this causes very bad things to happen to other ponies, as well. (as seen in LG5, where the ponies have become "Zalgofied")

In the end, she forces Luna to go through an endless nightmare of her constantly dying grim, horrifying deaths as punishment.

Like I said, most of that is speculation.