First Startup a novice game of 360 or arcade.
after that you need to boost your rank to level 3, you do that by just going into the kakusei mode when you have no gems, all bullets are now red and around your char is a ring that fills up like a clock, just wait till it's done (3 times) after that you can play just normal, but don't get hit
when everything gone right on stage 5 seseri will have a different bullet pattern, just kill her and done