Final answer:
In the movie 'The Princess Bride,' Inigo and Fezzik encountered the R.O.U.S. (Rodents Of Unusual Size) on level 2 in the Fire Swamp.
Step-by-step explanation:
Inigo and Fezzik encountered the R.O.U.S. (Rodents Of Unusual Size) on level 2 in the movie 'The Princess Bride'.
The R.O.U.S. are large, aggressive creatures that inhabit the Fire Swamp within the fictional setting of the movie. They are depicted as being about the size of a human and possess sharp teeth and claws. Inigo and Fezzik have to fight off these creatures as they navigate their way through the perilous swamp.
The encounter with the R.O.U.S. is a pivotal scene in the movie and adds to the excitement and adventure of the story.