I seen something that hardly can be called a bugs, but watever: in last vip zone(where another entrance in club located) you have npc that grope you(you knock him), then grab you(you knock him again but this time he disappear and you need to reenter into location), then you will have a fight with him; thug beatting achivement only can be obtained after entering into garage(or what it?); club enter acvhivement only activate when you enter using main entrance(other way doesn't count); hobo seqence doesn't check order(for expamle I firstly let Kay lose her bra and after that checked other scenes with hobos hobos located before bra losing have scenes with bra); Quest about enter into club only count buying pass from shop and entering from the front.
