This room houses Andrew Looney's id, and as such, it is the focal point for all of his thoughts relating to his primal, primitive urges.
The id itself seems to be a small aquatic beast of some sort, further along the evolutionary scale than the fish, but still a good bit short of being human. The id is floating in a large, cylindrical tank of water. Offhand, you can't see any way in which the id actually exerts influence over the sections of the brain that it controls, much less over Andy himself. However, when you look into its little beady eyes, there is no doubt in your mind that the power this little creature has over Andy is very strong indeed.
Kristin is here, leaning against the wall and looking very bored. She rolls her eyes when she sees that you are actually interested in Andrew Looney's primitive, primal urges.
From here you can go to the Control Center, the Dream Control Center, the Diner, the Chocolate Factory, the Basement, the Funny Bone, or the Erogenous Zone. Or you can look at the map.