So Atlus is a pretty great developer/ publisher; not only as a Japanese developer itself, but Atlus USA regularly brings us the quirkier niche titles we probably would never see otherwise. And while their future at Sega/Sammy is a bit uncertain, for the moment things don't looked to change much. But Atlus has been Round since the NES era. And for all their great games there have to be more then a few dogs.
The worst game I'm aware of Virtual Hylide for the Sega Saturn. Atlus being responsible for publishing this warmed over turd in North America.
Is there anything worse?
And I suppose if you can't think of an objectively bad Altus game, your least favorite subjectively will do as well.