AWESOME GAME
I played it twice, wa really cool and great, but you should make a extended version later of this game, with more upgrades fot your ship, for the enemies, and also upgrades for the base
the only detail is that the ending, compared to the game, is a crap, is like the ending of bonnie and clyde movie, try to work more in the game story, i hope to se a sequel for this.
Also i loved that you can upgrade your allies, that is one of the most important elements to defend the base