Astro-Barrier SL

How to find secret levels in Astro-Barrier:
Step 1:solve levels until you come to the orange button guide.
Step 2:shoot orange button.
Step 3:shoot green target.
Step 4:do Step 2 or Step 3 over and over until a blue spaceship pops up.
Step 5 (or Final Step):shoot blue spaceship.

[Coolgindara]

Thanks! There is some thing in that game click 1,2,3 for Secret Levels (when loading)