I've played all the games.

I've beaten these on normal: (1CC)
Lotus land story
Mystic Square
Perfect Cherry Blossom
Imperishable Night
Phantasmagoria of Flower View
Mountain of Faith
Subterranean Animism
Great Fairy Wars
Ten desires

Also I've unlocked Hatate in Double Spoiler

extra bosses I've beaten are
Ran (PCB)
Mokou (IN)

Impossible Spell Card is really really fun.