Protect the Earth from asteroids and small planets as long as possible! In each level you have of ammo which increases the number of hits, get the extra score and ammo at the end of each level. Your mission will failed if the earth is strike 3 times. Heave fun! space battle,asteroid defense,space shooter,asteroid game,earth defense,action game,skill game,kids game,space game,shooting game,strategy game,asteroid shooter,space survival,online game,mobile game,space,action,skill