Serious Sam 2 Easter Eggs

There are a number of references to the game Duke Nukem Forever throughout serious sam 2. A number of npcs talk about "that blondie guy" and how he has taken forever.

the first reference is when Sam is with the Sirian great council after he kills kwongo.... more

When Sam gets to the beech (2nd Level) head up the beech (same direction you would go to get to the bridge that goes across the lake) keeping to the jungle side of the beech and when you get to the end of the beech you will find a bush with two pairs... more