just a few on my list:
Neo Geo CD load times. Simply awful!!!!
GBA slot removal on the DSi
the Turbo Grafx single port(as many have said) I remeber fondly recieving this system from my parents at Christmas many moons ago. I also recieved and extra controller and a few games including Takin it to the Hoop. Great Christmas gift...dont get me wrong....except one thing. A 2 player game....two controllers in my posession......no way to plug in the second. Thay didnt look at the system in detail....so no Turbo Tap. They figured that out very quickly when my Dad set up the system for me and we went to play the basketball game. Day after Christmas at Toys R Us.......Turbo Tap out of stock. Had a few friends come over during Christmas break and we had to take turns. Kinda frustrating. Not my parents fault at all. They werent the geniuses behind the system design.
Dreamcast bottom controller cord. others have said this as well. Why Sega??? Just to be different???
My whole 3do experience.