Aliens or other objects descend in the spacecraft in both white or black. You need to shoot them with the color They can be to get rid of them. If you unintentionally shoot them with the incorrect color they grow more substantial and more robust. Armor Firepower Survivability Large, closely-armored, https://tankshootingfreeonlinegam87418.onzeblog.com/29601711/5-simple-techniques-for-free-fighter-tank-game