"You've been dead only a short time. But it's all a mistake. You shouldn't be here. You have to get out.
There's only one problem. The Azrael is calling you back. The Azrael won't let you go."
This is a really interesting little horror-themed platform game. Created by Kristin Anthony, originally as an entry to The Meatly game jam, it's a game about you as a ghost, seeking to return to life and being constantly pulled back towards death. There is a making-of blog post too.
All I will say is: PRESS RIGHT! at least to get you over the first block. Then follow the in-game dialog and take it from there.