I wanted to give some feedback. First the good: excellent artwork, fluid mechanics and a decent challenge. You even have a decent intro/outro.
I do have a lot of negative comments but I have an pverwhelmingly positive view of this game.
1) "Collecting" girls.
a) Is there a rhyme/reason to the three options upon capture?
b) Is there a way to know how many girls there are to collect?
c) Is there a way to know which stages you've completed and which have uncaptured girls?
2) A New Game/Continue option would be preferred, instead of needing to skip and load each time.
b) A prompt to save the game is saved would help too. My game didn't save in my default browser.
3) Is there a mute option?
4) How do I make the fullscreen after the title screen?
On a completionist note, there's a fish girl with brown skin in the thumbnails I haven't got. How do you get her?