Well I didn't like the game much. Only 4 levels were there and I completed it 2 times in about 2 minutes. I thought it had more levels.
I gave 5 stars because I do not want to ruin your ratings.
Maybe my rating can help.
Well same here, I am also making a new game, may your game be a hit.(#Waiting For It)
You need to improve though, and I am saying it in the most respectful way ever.
May you prosper as a great game developer.
(#I am also a game developer, I know the feeling of bad ratings.)
You should add more concept and enemies in the game.