You need a tutorial level.
The font on the main menu is hard to read.
And it's hard to keep in mind the informations on the main menu. Player didn't even see how the game looks and you tell him what to do.
I got confused and readed the Instructions 2-3 times and still didn't understand well.
So I just jumped into the game. And then realized, I didn't even know the controls.
So yeah, you should make a tutorial.