Other antag critters apart from spider

[Wisecrack34]

The invincible cockroach from outer space! It is immune to radiation, is able to punch people VERY hard, has tiny human hands and most importantly; they can't be killed, only temporarily knocked out where the antag player will have to play a "cockroach fixing" mini-game/puzzle to repair it. They can use willing ghosts as loyal critters to help in it's schemes (Same as regular critters but they can pick up large objects through the power of teamwork, taking various amounts of roaches depending on the item, firearms taking many roaches with the payoff of being a very funny sight).