Who wins?
Circle of the Moon vs Castlevania
Castlevania wins 68% to 32%. 67 more put them in the same row. From Castlevania Games Tier List. Pick a side.
tiny_goblin on Circle of the Moon: difficult but rewarding, the card system is great
mega_frog_4894 on Castlevania: the most polished and fair of the NES games
Castlevania Games Tier List: the full ranking