This is getting serious!
This article contains spoilers. It might spoil your gaming experience when first playing these games.
- After exiting the village area with the four scarabs, move onto the big corridor followed by the spike pit, just when you enter the big corridor turn right, you'll see a differently colored part on the wall. Blow it up with a rocket to reveal a secret ammo depot containing a cannon and some cannonballs.
- The Lava Golem boss spawns in the end of this level instead of in the end of the Alley of the Sphinxes in Serious Sam Xbox.
- In the classic version, Metropolis has bluish lighting and the sky is more clouded when playing on serious difficulty.
- In the HD and VR versions, in co-op, Metropolis has cloudy dark weather and it's raining when playing on Serious difficulty.