This is a FAKE cockroach movie, go watch 'The Nest' instead
The story is about a bunch of scientists who create a bug called the judas breed to kill off cockroaches. So it's the JUDAS BREED that mutates, NOT the cockroaches.
Boy oh boy could you imagine what this movie could have been if it were actually about life-size roaches? Throw in the madagascar hissing cockroach, then the large european one with red eyes, the asian ones that fly the highest, and man you got one hell of a disgusting, action-packed bug movie.
If you want a REAL cockroach movie, go watch The Nest, they may not be supersized but they sure are thirsty for human flesh.