instance_create(random(room_width),random(room_height),obj_item_shield);
instance_create(random(room_width),random(room_height),obj_item_restore);
instance_create(random(room_width),random(room_height),obj_item_hyper);
instance_create(random(room_width),random(room_height),obj_item_nova);

alarm[0] = global.droprate;