Honestly I think You put too much into the design, From my experience I find simpler designs to be much more attractive.
If you want my input, ditch the A, B, C, and Ouroburos letters they are a bit tacky I do like the start button though.
I like the feel of the background for the right side, Only thing I would Change about that is the brightness, Its a tad too bright for my tastes, (again, just my personal opinion)
Darken the colors surrounding your buttons as well.
I like the hazama text
The left side...Clutter, Clutter Everywhere. I honestly think you should just simplify it. Get rid of the ghost, and black crest in the back. You do better with just a simple gradient fading in imo or even just a black background fading in with the white crest in the back showing through...
oh and change the positioning of the crest, Its too far to the left.
Alright my input has been given, I'd like to see what you do with your design