This scene is a follow on from when Fuchsberger is cornered in his friend's office (with the cold storage warehouse in the background that was actually in Kwai Chung!). He escapes from the room and all of a sudden ends up on the Tsim Sha Tsui rooftops.
The cluster of buildings where the chaps are scuttling over the rooftops are the exact buildings that were removed to make way for the redevelopment. Actually, they're looking in reasonable shape in this film but by the time came for demolition they were looking pretty sketchy - but nothing some TLC couldn't have fixed.
The view has changed drastically with additional high rise development now obscuring the signal tower on Blackhead Point (that;s still there thankfully), but there are some familiar buildings to be spotted around in the background including Chung king Mansion, Mirador Mansion, Peninsula Apartments and the Lyton Building. All those nice looking balconied low rises have all been redeveloped.