Fortunately, J, being the clever, no-nonsense NYPD cop he is, is able to figure out that the Bug has a soft spot for his earthbound family members. Coming across a small village of cockroaches in a nearby dumpster, J unapologetically stomps on them one by one, successfully tugging at the Bug’s heartstrings and distracting him from carrying out his mission. That, essentially, is what makes Edgar the Bug such an impressive villain: he has a multi-layered persona with a rough, gross exterior, but a sensitive inside.
Article source: https://www.cinemablend.com/news/2471684/men-in-blacks-10-most-iconic-aliens