The movie Jaws came out when I was 10. I was too young to see it, but that didn't stop me (and all my friends) from being petrified of any body of water - lakes, pools, bathtubs.

If that little cockroach-filled squeeze ball was designed to freak people out then maybe it was just well designed.

I wonder if you could cut the ball to pieces to show it's just a toy with pretend cockroahes and desensitize your DS.