Not bad at all
The creepiest part was probably when Satan licked his fingers in such a sexual way. You can never make something good by using the word "lubricant". The coolest thing about this was how it showed Leo escaping from Hell. Most of the time, characters just die and they come back to life with no explanation. You actually expanded on the explanation that you did have! It was great how Satan was freaking out over the video game because it was so realistic.
It's hard to say if Satan is supposed to be good in this. He doesn't seem evil most of the time, just, well, insane. Good thing Leo is already in Hell so he's not going to have to go back there as Satan squashed him. I love the T-shirt at the beginning. The socks line is probably the most memorable in the entire series and I liked the variety of music.