I don’t know anything about fire emblem so I found another dare about it that should work
“You will play Fire Emblem with something in your ass, it should be big but not too big that is extremely uncomfortable. You should also wear some tight underwear (boxer briefs or briefs is best).
Every time you lose a fight, pull the object out so that only the tip is inside you and then use your weight to push it back inside you as you sit back down (you can pull your underwear down while you take the object out and put it back if you need to. If you lose the game, then you should replace the item for something bigger and then repeat.”
I’ll be changing it to Enter the Gungeon