Here are three clues that put me on the way :
- In the babes locker room, open lockers, and one of them contains a box of noodles with Lo Wang Chinese writing on it.
- In the men's room, left of the codons distributor, Lo Wang left a graffiti.
To see the others easter eggs that I found for now, go here (in french)
* The top a reference from Inception, to show that Duke is dreaming.