I'm a new Flash games developer, i just created my first game in Flash using FlashPunk, it was great, now i'm supposed to create a single player vs cpu soccer game, exactly like this one : Kung Foot.
As i said, i find FlashPunk a good Framework, but i'm opting for better performance and heavy graphics, i'm actually think about either Citrus or Flixil.
They both use Box2D for collisions, but i've heard that Citrus would be the right choice if it was a platform game.
I don't know if there are any other well documented Frameworks out there, what do you think !