Absolutely everything from Youmu :<
6-2 is... hmm. K. If you're like me, you hate shots coming at you from the side and behind you, so charge your camera as fast as you can but get right below the incoming bullets so that they're coming at you from above. When time slows down, LET GO of the charging and just focus, which should allow you to move out of the way of some bullets. Once you're out of the way, charge up your camera again and dash off to the next side. You won't always get right beneath, you don't have time. You're going to have to get used to bullets coming at you from a 45-degree angle, but with practice it's manageable.
6-4. Start off at the far left, and move to the right charging your camera. Move out of the way of bullets if necessary. Isn't this three photos? You should have them all by the time you reach the far right.
6-6 brings up mental scars that I'd rather not discuss.... it's easily the hardest of Youmu's cards. That one's pure practice, practice, practice. Remember, stream the large white bullets while being on the lookout for small white ones. Defensive shots are your friend, 'cause Youmu has a nasty habit of staying out of range of your camera, since you're going to be huggin' the bottom of the screen a
lot.
6-8 was eh. Start out at the bottom and move upwards charging slowly. It's basically like 6-4, except with horizontal slashes and not verticals. Move like hell if you need to. You're also gonna have to get used to bullets coming up from beneath you, so good luck. o>
By the way, Youmu goes completely insane for the last shot on 6-8, but she also pauses long enough that you should have quite enough time to charge your camera before she comes near you.
Anything/anyone else? I could do this all day. Having a photographic memory has its benefits!
Not that Manaxanadu won't be making rounds in 2010, of course.
<3