In the new update I added the following 

• Improved the Spawning of the Enemies and Made the difficulty more smooth and linear
• Added Player Name now when you first run the game you will be asked to write you name and all the dialogue will use your name for the main character.
• Added Tutorial to learn the basics how to move and shoot
• Also Changed the fonts for all the Text in the entire game to match the theme.
• added new sounds sfx for bullet explosion 

That is what for now. More Work needs to be done. so far i am happy with how it looks.