The next Niflheim takes several tries for most players. Accessories are your choice here, so if you can afford the Conqueror's Reins (60,000 Seeds at Rodin's portal) wear it: a hit on you then can't send Gouon on a rampage, which this stage forbids. Fire the thrust, blast and cannon signals as the train passes each enemy so they are struck, not just grazed. You can raise the track to reach the flying enemy but never lower it again, so leave the flier for the end of the run. If it won't fall, come back for it on a Chapter Select replay.