ch = choose(0, 1);
if (ch == 0)
    instance_create(global.idealborder[0] - random(global.idealborder[0] - 50) - 50, 250 - random(200), obj_meteorbullet);
else
    instance_create((global.idealborder[0] + random(c_borderwidth(0) - 150)) - 60, global.idealborder[2] - 200 - random(50), obj_meteorbullet);
alarm[2] = 3;
sum = scr_monstersum();
if (sum > 1)
    alarm[2] = 6;