Holy Touhou Clone, Batman!
If you're going to make a clone of touhou, at least make it good.
in general, enemy design was uninspired, bland, and enemy attack patterns were all essentially the same, and extremely predictable. There are three specific points I'd like to point out about this game, and I apolgize if my critique of this work is a bit antagonistic in tone, but this is far beyond the realm of constructive criticism.
First, the controls: Why would you make a bullet hell game use mouse control as the default? having one hand on the keyboard and another waggling the mouse is incredibly awkward, as well as having to check up on where your mouse is when the character doesn't catch up to it, so you don't end up flying straight into things. Once I actually figured out how to switch to arrow key control, the overall scheme of the controls were eerily similar (read: CARBON COPY) of those found in Touhou.
Second, difficulty: this game is too easy. It really makes a whole bunch of sense that it's called a bullet "heaven" when I would feel more comfortable walking through this game that walking down my street at night.
Third, originality: I know how hard it is for you KAWAII DESU anime types to actually come up with things for yourselves, but I was really floored by this. The use of the extremely small hitbox, ONLY SHOWN WHEN IN A SLOWED STATE BY A WHITE CIRCLE WITH A COLORED RIM, the little anime girls as characters, right down to the music, with the primary voices being extremely similar in timbre to those in touhou, and, while trying to sound 'pretty' and with a few electronic influences, doesn't quite have the same 'ring' to it, sounding rushed and altogether anemic.
1/10, 0/5.