To aim the gun use c and v keys to shoot use space to shoot and arrow keys to move... You have ten health avoid getting hit by the red enemies. Like soldier? try soldier2! https://scratch.mit.edu/projects/469240333 (Sorry there is no touch screen mode I tried adding it but there are a LOT of unexpected glitches...)
I wanted to make a game like this since I started scratch so I tried it now and it was surprisingly easy, I made it in a day!