I'm sure everyone has noticed that when you turn the power switch ON on the SuperGrafx a little piece of plastic protrudes from the left side of the system for no apparent reason. At first I thought maybe this would just act as a far less convenient way of powering the system off, requested by customers who hate their lives. But no. I must assume it was for that thing that the SuperGrafx was supposed to attatch to, right? So you don't remove it while powered on? Kinda like how the TurboGrafx-16 and the Turbo CD must be locked together in order to power up. Is PCE the same way with the IFU?.