A bit of PC98 help needed here :V
MS Extra - Alice's second attack. Didn't really try after my 10th failure there.
LLS Extra - First boss, that attack with the blue knives. It's nearly impossible to read and when I try tapping left/right, I still get hit. No trick I guess?
Also the survival part before LLS extra boss.
Alrighty. Alice first. You're talking about the part where there's a chain of bullets being aimed straight at you with waves of fire that kind of flap like wings, right? Simply stay close to the line of bullets, and when you start to get about 1/4 the way from either wall of the screen, wait for the wave of fire to move away, then quickly snap toward the wall a bit, and start moving in the opposite direction. Doing this misdirects the aimed shot long enough for you to get in between the shots and start streaming in the other direction. Really simple once you get the rhythm down.
Next, Mugetu's first part. A lot of it is luck, honestly. It's a bitch to dodge that part, so don't be afraid to bomb if you have to. One thing that seems to work for me is to be on the opposite side of the screen that Mugetu's on when she starts to shoot that part (she always follows the same pattern, so memorize the waves), then quickly move under her as she starts to fire. Doing this increases your chances of being in a more open area. Don't worry about the criss-crossing sparkle bullets, they're just there for intimidation-- they give you an opening right as the wave of blue bullets ends.
Survival part before Mugetu: It's a pain, but very doable. Start at the very bottom center of the screen and slowly tap toward the top. At this part, the bullets are just on both sides of the screen, and they all aim one bullet at you. The rest of those bullets are intimidation. If you take it slow enough, you can ride out all of the first part just from going from bottom to top. Once that part ends (it will give you a bit of a sound cue), fly down to the left bottom corner of the screen before the second wave of the survival starts. For this one, keep the focus button held at all times, and follow the bottom wall to the right corner, and then follow the right wall to the top. The bullets spawn faster here, so start making your way toward the left bottom corner where you started by moving down-left diagonally. If you did it right, you should avoid everything.
That's a pretty bad explanation, but I hope it helps you somewhat.
EDIT: Baity beat me to the first two parts.
