This is an addon now released for Amnesia: The Dark Descent. It allows you to play as your choice of one of the 6 main characters of My Little Pony in both the campaign as well as custom stories.
I increased the gap between the walking soundbytes a bit, but it still sounds a little weird. You can be the judge. This video also shows the galloping sound that plays when you sprint again as well as demonstrates the sounds of jumping at different points. It's not an exciting one.