Instant noodle attracts cockroaches

Leaving the instant noodle cup (+ the soup), the lifeline during the typhoon, at the corner of the room generated a makeshift cockroach killer: 8 total, all drown in the red sea. Nothing like this was seen before.
Looks like the Japanese miso flavor had a special thing for the tiny creatures. Or if it is due to the reddiness and spiciness, then nothing beats the Beef noodle. The experiment should go on.
Problem is since beef noodles taste very, very well even in the NT50 (USD1.5) stores, downgrading it into the cup version does not sound like an edible choice at all. Totally spoiled.