Virtue of Wind God.
I finally managed to beat most of Kanako, but I kept failing horribly at this, even with four lives+4.8 power/bombs.
Practice practice practice. Dodge dodge dodge. Macrododge lots.
You will eventually start to be able to kind of recognize the patterns quickly; many are static patterns rotated randomly.
Of course there is. Despite the wall formations being randomly oriented, I took advantage of the fact that some parts of these attacks are still "static", dodging the more trivial portions of each wave the same way (adjusting for said random orientations, of course). This allowed me to focus more on the overlapping walls and read a path through them as early as possible. True, it's not a complete solution, but something like VoWG encourages anything that can improve your chances.
Agree. After a while, reading becomes kind of natural (subconscious memorization?? :V)
I still manage to wall myself often though

3 death time out the best I could do.
Also, my concentration tend to break after a while, leading to multiple deaths in a row and ruining my timeout attempt.
I guess there really isn't much of a solution except to practice moar.