Superhero origin stories are told again and again -- even Superman is getting a new one, which is just silly at this point, yeah? The trick is, what are you going to add to the story that was not there before persuasively. How many times have I seen that bat crash through Batman's window? Lots of times. How many times has it occurred to me that the bat is surely dead as a result of the crash through the window? Zero. That there would be a mess to clean up? Zero. That of course Alfred is going to have to dispose of this stupid fucking animal, which has no symbolic significance for him? Zero. That he is going to have to THROW IT AWAY and BURN it, because it is a dead animal that is going to give someone RABIES or something. That page seriously cracked me up, because it perfectly fulfills the Hollywood axiom of be INEVITABLE yet SURPRISING. (If I was still arguing that Morrison was in a literary agon with Miller, this would be a great subversion of Year One, but I am declaring that fight over. Morrison never stood a chance, but he can still hold his head proud for kicking the crap out of Alan Moore's Man of Tomorrow story in All Star Superman).
The rest of the issue was not so good. The variant history thing where you acknowledge variant tellings of the story with "thats not how it happened I have seen before and seen better. I have certainly seen it DRAWN better by John Cassaday in Planetary/Batman. Mothman and Snake man did not do it for me. The art was occasionally charming (panels 2 and 4 of page 13 for example), but not by any means a favorite. The end reveal was OK, but as Tim Callahan points out, it refers to a book that came out long ago, and which I do not really remember anymore. Overall: a lukewarm comic book with one great page.