My only real criticism is its own limited nature.
What are you parodying?
I really like all the sounds. How many tracks is this made up of? Specially at the start, there's a lot of cool stuff going on at the start.
I like the whole vibe - yeah, it's just a silly song, but there's a nice 'feel' to it, with the background voices and guitars giving it all a kinda relaxing feel.
Also, it made me chuckle the first couple of times I listened.
My only real criticism is its own limited nature.
I suppose I could also criticise the fe mic pops near the start, after 0:20 and also when you laugh. But for me, that almost adds to the mood.