User blog comment:SolZen321/Things I don't like in the Ultra Series/@comment-5920426-20160130034132/@comment-5527544-20160130114521

The problem with the WMDs in the Ultra Series, is that all of them are nuclear level or worse. Now these weapons were made to defeat alien invaders, but at the moment, the only place they could be used is on Earth or at least within the solar system. So these weapons that cause massive desctruction, or often overly destructive, to the surrounding environment and would cause massive collateral damage.

As for the missile from Ultra Seven, it was pointless. Think about it, the only races that could  be threatened by it, would be those unable to detect and/or intercept, races that would conceivably be no threat to mankind. So mankind would either be pointing that thing at innocent beings that are no threat to them, or it's useless