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Genesis, Saturn failed
But Sega Saturn had 18X games in Japan.
You only play Dreamcast games like Sonic Adventure on your Sega Dreamcast instead of Sega Saturn.
Find an old Sega Saturn, place it on top of your Playstation, put the games in the Saturn and presto! You're playing Saturn games on your Playstation!
No, you cannot !
Directly from the Sega Saturn manual:
"You cannot use Genesis, Sega CD, or Genesis 32X games or peripheral equipment with your Sega Saturn."