1.Press the green flag twice 2.Use "W A S D" to control the space fighter 3.Press "Space" to fire 4.Press "F" to stop moving 5.Press "0" to switch control mode ["space mode" is more realistic , but hard to control . "air mode" is easier to control , but not realistic !default set as "space mode"!] 6.Shoot the asteroids 7.Protect the ISS 8.Press"Repair"to rebuild the ISS [you will need enough coins] 9.If you have problem getting coins , see this !!ONLY FOR EMERGENCY!! Press "C" and enter "ISS DEFEND" to get 50000 coins
