Floor 293 is comprised mainly of brain matter and various clear fluids, with electricity sparking along the walls at random intervals. As you enter, an invasive presence presses into your mind and expresses surprise and outrage that you made it past Floor 290 without being locked away in Floor 291, and then expresses fear that you passed through Floor 292. It pronounces itself as the one and only thinking being in all the tower, and denounces you as a servant of the penguin revolution.
Luckily, you escape to the safety of the omnishielded elevator before the presence can seize your bodily functions.