I agree with the abov post, but would like to add a solution to criticism:
Go back to a genre-defining game like the original Raiden or Ikaruga and actually sit down and play through and take notes on every enemy, attack and boss pattern and write what you like and dislike and of course the why.
I'm not saying copy them outright, just give yourself as a designer a better idea of the thought that went into these games originally.
On a side note, it's amazing what people are using HTML5 for these days!
Go back to a genre-defining game like the original Raiden or Ikaruga and actually sit down and play through and take notes on every enemy, attack and boss pattern and write what you like and dislike and of course the why.
I'm not saying copy them outright, just give yourself as a designer a better idea of the thought that went into these games originally.
On a side note, it's amazing what people are using HTML5 for these days!