You know, everyone says the final boss is a testicle, but couldn't it also be a bydo egg? It seems to me that the final fight could be explained as the Force fertilizing the egg. While all the sperm around would suggest it was a testicle (unless bydo biologies are so bizarre that their eggs produce their own sperm), I think it's at least possible that the sperm just happens to be around because of the egg, without being produced by it. In the final part of the fight, the sperm seems to come from everywhere, not just the boss.
I LOOOOOOVE Flying Omelette!!
Crawl and 1000