>>12076359
>Sega CD was a dud
The Sega CD was actually a modest success for Sega and wound up turning a profit until it's discontinuation.
>The Lock-On passthrough was quietly dropped
Lock-On Technology was only ever intended to be used for Sonic & Knuckles with zero plans for it to be implemented in any other game.
>No standardized multitap was adopted
Sega literally had their own multitap, the Team Player, pic related.
>The SVP turned out to be overheating garbage
The SVP worked fine in Virtua Racing and was planned to be used with several more games, but they figured it wouldn't be cost effective with the aging Genesis platform.
>32X's failure
This and the Saturn's botched US launch are the two things that really ended up fucking Sega over.