The 2nd time around you do not have to fight the Doorman, the Drunk, or the Dog.... There should be different endings for each variation.
Like beat up everyone but the Drunk.... end up in a bar
Everyone but the Doorman.... He becomes your Butler
But Doorman and Dog.... some weird Dog Walker scenario
Etc.
To me that separates this from being a 5 star to a 4.
WHT? I finished the game before being able to upgrade everything and then it resets to zero?
That's not cool!
I do not want to go from 60 to 0.... most of the fun in games like this is being fully upgraded, completing the game in full, and then doing power runs for fun.