global.kills += 1
if global.kills >= 10*(global.mult+1)
   {
   global.kills = 0
   global.mult += 1
   global.mesmult = 20
   sound_play(snd_multiplierup)
   }
global.scores += 50*global.mult
repeat (3)
   instance_create(x,y,obj_meteorsmall)
sound_play(snd_enemyexplode)