Science Fiction as discussed in Wikipedia, is a broad genre of fiction. The definition of the genre of science fiction literature is extensive. Zygors has elements of science fiction; even a female space alien, a flying motorcycle, a spaceship, etc. But Zygors does not take place in the far future like some science fiction, it is not fantasy and does not take place in a far off universe; it is science fiction in the near future or science fiction in the present. It follows the activities of two guys who live in a Manhattan apartment with a woman who has amnesia. These guys are sex researchers but are virgins. One has a bit of a problem. Mrs. Finklestein's apple strudel helps things along. You will even get a little bit of Mrs. Finklestein's recipe for apple strudel. There is a dog named Stupid Asshole. There is a homeless guy living in the subways of New York City who was a ski bum once but ended up on the streets. There is a hate group organization named Rill of Death. The name of the group is symbolic of a concept known as 'groupism'. Groupism is an underlying theme but you can read the book without ever understanding that. If I do say so myself, this is one of the best science fiction books you will ever read.
So much for the genre of Science Fiction.