This new trailer really puts strain on the definition of "Mature humor"
Duke:Combo!Double Combo!Triple Combo!Super Combo!
And yes, there's an achievement/trophy tied into finding and stealing a piece of poo. Behold, the Turd Burglar.
During a point in the demo, Duke is allowed to draw a 'plan' on a whiteboard for some soldiers. No matter how nonsensical a drawing you make or how much of the original plan you replace, the soldier observing will respond with amazement.
Soldier: Why didn't we think of that!? WHHHHHYYYYYYYYY!?
Soldier: I have no idea what that means, but if I did, I bet that guy over there would still have his arm. And at least one ball.
Running an enemy over with Duke's monster truck:
Beep beep, motherfucker!
So much for anti-lock brakes.
When Duke gets shrunk by a trap in "The Lady Killer" he meets a kid who says he's "the coolest toy ever." Duke's response?
"Hey, kid. I'm not a toy. I'm an action figure!"
Later, while shrunk, Duke ends up fighting some rats who mistake him for an easy meal.
Duke's gleeful cackle and mimicking of complex machinery winding down broken after he trashes a turbine in "Underground" was so unexpected yet appropriate, Also, he has never felt so good about vandalism before.
Punching out Christian Bale. Nothing more needs to be said.
In The Doctor Who Cloned Me, Dylan becomes one of the funniest parts of series. His best line is his idea to get Duke to the moon (reverse the polarity) and the follow-up. It's just how proud he sounds about the idea that sells it.
Duke Clone: Repeat after me. I've got balls balls balls balls of steel.
Duke: I've got balls...er...balls, balls, balls of steel?