In the Hong Kong Street map at the end of the street with the glass windows the framerate drops for a secound when you hit th glass.
In the lucky money the party escorts take a little bit longer to walk up the steps
After talking to Maggie chow for the first time if you invoke her to say a bark as she lowers to her seat she starts sitting in mid air.
Also, Maggie Chow can die if you visit her before talking to Gordon Quick
In UNATCO HQ Gunther Herman barksout as if he is hostage in the statue if you did not meet him then.
Also in UNATCO HQ the UNATCO troops bark at you through walls
In the free clinic when you walk in the room with the beds with all the dead bodies as soon as you
walk in you see several black lines along the floor.
In the lucky money if you shoot Max chen he uses no weapons
In the Hong Kong MJ12 Lab on the secound floor where the experiments are if you kill MIB's or
troops too often the other nearby troops wont react and attack you.
Also in the MJ12 lab the bum seems to run into the walls when he is freed and the commando does not
kill him. And the doctor does not say anything til the bum is past the secound blast doors.
In Jock's hong kong apartment if you shoot the glass the alarms go off and the police don't react.
Added (2009-01-03, 0:55 Am)
* Conversation with Jaime through the wall in UNATCOHQ (happens if you stand near a wall so that he is on the other side).
Could this be because the invoke requires a radius that is beyond that wall to start the conversation. Try to place a conversation trigger near Jaime and make that the only way to talk to him.