Eh...
Forgive me for saying, but this lacked a definite punchline. I found it to be more mediocre than your others. The first of the series was hilarious, all those years ago, with cute but retarded animal babies- hence the name. The second and third got worse, but then you changed style entirely and went to nudity jokes and morbid humour. It worked, for most people.
This episode didin't really fit either of the aforementioned. Sort of one of those awkward attempts at a sequel for the sake of another movie- not the greatest plot, but everybody loved the first one so hopefully it'll pay off.
Sorry, but this isn't one of your better episodes.
~VelvetDarkRocks~
PS: When Puppy speaks after clicking the cake in the opening menu, this is what he says. And yeah, I didn't bother emailing Dave because a few dozen people would have by now.
"[something] RAB 16, which is only going to be on the next DVD. Be the first to decipher this, an email me with the subject line XQ4 and then you'll get a free copy of the DVD! Fucking eh!"