Just recently myself got a jap360 deathsmiles, ketsui and dfk.
I love them all however one thing that frustrated the shit out of me is having to point blank enemies for high scores or to build your hype meter...etc I was really dissapointed by the scoring system in ketsui wasnt what i expected. still love it tho. Point blanking just constantly kills me

Especially in galuda2 actually really dislike that game cuz of that.
I think dfk is amazing i like 1.5 mode the best. I love how vibrant it is. The soundtrack is good (Not a patch on the mushi games tho)
I read b4 i owned this game that it was an easy clear. Have to completely disagree with this. well on power mode that is. Im finding it hard as F%#K!!! Not sure why this is i think its because i dowloaded a really high score replay and im basically trying to replicate that lol. I was finding it really fun just playing for survival but unlocking/killing the secret bosses is frustrating the hell out of me. fighting off the lasers when hypering is a really nice touch tho, fun as hell.
Overall tho i think i would have preferred the usual ddp system. 2 buttons and regular chaining as in bullets dont count as hits. I actually think the old system, however with this more relaxed, easier chaining along with the nicest graphics my eyes have ever witnessed, would have made for an awesome game! Thats what they should have had for an arrange.
Just my 2 cents

Gr8 info by the way, this thread cleared up all my questions. K back 2 play some more now. My eyes are practically bleeding at this stage lol.