Needs improvement
You said that this is your first game but there is plenty that you can improve on.
First of all, try adding the instructions in the game to give players less confusion. Second, try to organize the screen better and labeling them. It took me a while to figure out where my life bar was. Music and sound effects would also help.
Lastly, is the last part of the damn level possible to beat? There are shooters everywhere whose bullets can cover the whole screen, making it impossible to dodge.