The real action will begin, as the aliens have overrun your “cave”.
This stage is perfect for unlocking a few achievements.
You will start off by having the chance of killing an alien by throwing a statuette at him.
Kill 10 aliens this way to unlockTosser… in the Literal Sense.
The first room you will arrive to is Duke’s gym.
This place is a real Ego mine.
it’s possible for you to also unlockBalls of Steelby scoring over 1.000.000 points at pinball.
Once you’re done raising your Ego, pull out the vent and go inside.
Soon after you get out of it, all the light in the building will go out.
In accordance with the hint, turn on Duke Vision.
On your way you will also find beer cans lying on the floor.
Pick up one, but don’t use it yet.
Inside one of the rooms you will find another vent, follow it to the generator.
Beside it there are two cells which you better insert.
Do it and the door leading to the third cell will open.
It turns out to be inside a locker room, behind glass.
Luckily you have a remote control car at your disposal.
Use it to pull the cell to the hole by the door.
Return to the main room and place the last cell in the generator.
Turn it on and take the steroids that will come out.
More aliens will soon enter the room.
Take the steroids, drink the beer and smash some alien heads.
It will be also the first step towards yet another achievement -Duke Angry, Duke Smash!
(kill 15 aliens while on steroids).
You might kill 6-7 aliens that way, finish the others in a conventional way.
Eventually two Pigcops will enter the room.
But don’t worry, the pistol is surprisingly effective and headshots are absolutely murderous.

Just shoot one of them when an enemy is standing nearby.
you’re free to also pick up the cylinders and exploding barrels and throw them at enemies.
Having the Colt, start doing headshots and after 30 you will unlockOn the Noggin'.
Finish the level by taking over the giant gun that the aliens were trying to destroy.
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