Now there's a response that allows me to see why/how other people can enjoy it. Thank you.
Yeah, the idea behind it is really nice. It just seemed to me that they tried to make up for the lack of creativity in level design by just making the difficulty insane and putting repetitive patterns. Much like a MMO, in fact. Trying to fill in a void of emptiness through inane means.
Since difficulty in Castlevania is an issue here, I'd like to bring up Order of Ecclesia. I thought that game did difficulty really well, since it required both thinking and quick reflexes. The difference between these two games, I guess, is that Circle mostly relied on damage control rather than intelligent design for difficulty, while Ecclesia is the opposite. It's funny though, some KCEK members worked on Ecclesia too, which makes me kind of wonder.