After defeating Lolotte, go to the corridor with the door to the prison cell and type "beam me". Rosella will beam to a spaceship where the KQ4 programmers are. You can look at them and talk to them.
Also go back into your prison cell and type "rap kq" near the center of the room. Note: In the SCI version it is not possible to re-enter the prison cell.
On the second floor corridor of the PD, click the bulletin board with the hand icon many times (there's a small chance that it occurs) for a reference to the game's programmers Doug Oldfield, Chris Hoyt, Kim Bowdish and Mike Larson.