The player must search a club full of people close to the beginning of the game. The camera is set low so you are viewing the area from the perspective of someone in the crowd.
"Giggle Gas" is released into a room with the player. It causes the player's character to become giddy and giggle uncontrollably while speaking of how betrayed they feel. The scene feels extremely uncomfortable to me personally.
One balloon in the parade in the beginning of the game is a reference to an earlier game where Captain Quark dressed in drag as a disguise. This is barely shown, and is easily miss-able.