What are the role of prestige points in Sky Force Reloaded?

I started playing Sky Force Reloaded and I noticed that there are prestige points that can be collected but I do not know how and what is the role in the game.

What is the role of the prestige points in the game (what they are good for) and how can I collect them?


Solution 1:

Prestige points grant you credit points to acquire technician items (the pilot icon in the menu).