Took me awhile to figure out how to jump. It's Z, probably Y on english keyboard.
You should fix sky image so that line will not be visible.
In second level when I killed the demon the game freeze, or is this the boss and the end of this demo.
I am very sorry for my carelessness.

The game was released a little tight time, because I will go out next two days, came back today. Background image is added in the interim after the game to go, could not find a good background, I will try to resolve it. Thank you for your support.
This is just trying to make an action game. I have a plan to make a rpg + action games. Not action rpg game, is "ANGELS & DEMONS" game mode in combination with the traditional RPG game. And skills have a game engine, and sent a complete story and has the necessary material.