The rotating ice tunnel featured here was at the time a brand new addition to the Universal Studios Tour called 'The Glacier Avalanche'. It was inspired by The Eiger Sanction (1975), but soon became linked with The Six Million Dollar Man. In 1997 it was redesigned to resemble the dormant volcano from Dante's Peak (1997) and again in 2001 as the entrance to The Mummy's Tomb.
The white contact lenses used for the Sasquatch's eyes would later be used for the Hulk in The Incredible Hulk TV series (1977-1982.)
The same bionic sound effect is used for Sasquatch only it is much lower pitched.