Hard to pin point the best part, but I like it when you look at the Statue outside the entrance to the Night Club - "The BIG GUY is SPILLING the contents of his SACKS" I got a few rofls out of that.

When Joey gave a "jumpstart" to the transport bot?
That's when I knew this game would be something special.

The Dr.Who-reference was a laugh, can't have a british-made game without one, eh?
The again, I've always been a fan of radiation that makes you go green and melt. Remember your H.E.V suit next time, kids!

"I dropped my ID card in porridge this morning."

Joey: "His ideal woman would be a cross between his mother and his moped"
Travelco Guy: "Hey, you leave my moped out of this!"

"Do you want this sandwich Hobbins?"
"No, not after you're fingers touched it. It's filled with micro ORGASMS!"
Loved that scene. Not word for word but you get it.

One of my favorite moment is when you ask Anchor about the head implant. If you haven't seen this part, do it now.

My favourite moment is definately the trial.
Also lots of comments made by Joey (not Ken though, hated Ken).

Probably when you reduce Lamb's bank account to nothing. wasn't expecting

I feel bad for apparently being the only one that likes cheap humor, but "paying" for his operation at Dr Burke's ("Nope, can't use your lungs either...") was pretty funny. Thank God he didn't have to pay right on the spot.
Funniest moment was probably the dog catapult. Everything was leading up to it, the trap is set, the dog comes and ... *plonk* *splash*! :D
I agree that pretty much everything Joey (in his vacuum/welding body) said was hilarious. Reminds me a little of Marvin in Hitchhiker's Guide, only more fun. :)

Looking at the item in the nightstand in Reich's apartment.

That'll teach him for using a stolen ID card.

Robert: "Whenever I'll think of sewer waste, I'll think of you, Gilbert."

"I'll call you, Ken"

"It's wheezing and banging... like an asthmatic dinosaur in the mating season."