ketsui bombs

BOMBS
st 2: boss, 2nd phase, first wave-bomb. Can skip whole wave-bomb attack.
st 3: boss, 1st phase, as needed. Use the invincibility to take out one of the blue wall guns--makes dodging trivial.
st 3: boss, 2nd phase, first attack. Can skip through the speedwaves and kill the phase before it can return to them.
st 3: boss, 3rd phase. I still don't have a consistent strategy here. hugging a blue stream at midfield has like a 75% success rate, which is not enough to warrant the risk.
(I usually have lost one life here, sometimes two.)
st 4: first waves. I can't for the life of me find a good route here. But it's easy to anticipate when I'm going to get stuck in a corner.
st 4: midboss. As needed, for when breaking my lock probably isn't going to be enough.
st 4: gunships 1 and 2. I don't have consistent strategies here.
st 5 WHEEEEEEEEEEEEEEEE
er I guess I bomb each phase of the midboss. And if I'm out of bombs on the double gunship, I like to suicide in order to skip the "bonus" hexagonal ship.
...I probably need a solid strategy for Evaccaneer.