Dude, this would be appropriate for 10 yr olds, IMO. There's no mention of sex, at all! It's just a sperm.
Fun game, pretty easy except for the first acid level. And to the last guy, the vagina IS actually slightly acidic, for the reasons mentioned. So....yah.
A game cannot have badges until it has kong API and has been subject to the badging process, which often involves a badge thread where people suggest badges, followed by Kong administrators choosing the best suggestions and making up clever blurbs for them. This game probably has API already since the previous one did, but it just takes a bit of time to get badges. So chill out.