Very Well Executed
This looks like a job for The Bishop!! (Anybody recall this reference?)
First off, my critiques...
This flash needed a little more tension, the demon had a great laugh but I didn't really see him as menacing. I felt that the demon needed a slap on the wrist, not burnt to a crisp. Give the people a reason to want to see him abjured. Also I would have had the battle be more balanced. The hero is obviously going to win, just don't have him come in and pwn every enemy. It will get boring quick. It is too much like an early episode of Superman (I'm talking 50's TV episodes) where he would fight gun-toting mobsters; just no contest.
Now the good stuff...
I loved the concept (which has been explored before...yes), sure its also parody of DBZ... parodies are not theft folks. A parody says that the object being parodied has reached a level of fame where people want to emulate it. I liked how you made it feel like a real anime episode. The japanese words thrown in were a nice omake. I also like how you chose to go with a religious figurhead without the need to make PC references to every major religion. I'm a Catholic, yet I can enjoy anime which has heavy Buddhist / Shinto references (which the Japanese use unapologetically as well). I'm sorry folks but the Pope is an important figure in the world. There were times when Popes lead actual armies into battle. So the idea of a Pope doing actual physical combat is not unheard of.
I'd like to see a continuation of this series!