It's me again, but this time I've brought some more update news to BETA 0.3 that is releasing soon.
You have in-game currency now!
You can earn them by completing stages that you haven't played before, or killing Red Cubes in Endless Mode (the amount increase along difficulty level).

The money you earn can be used to buy Customized team colors or skins (currently we have pink and green as purchasable items), but don't worry, I'll make some cool skins and other special abilities.

Bugfixes:

Fixed the Bug related to Difficulty level and number of red cubes spawned

Wingman now will be completely destroyed when the health is 0