Extending Flash Stopper Duration

If you pay attention, Bright Man's Flash Stopper lasts longer if you slide.

The "duration timer" does not count down while Mega Man is in a slide, so by extending the slide, you make the frozen enemy effects last longer. This allows long rooms, such as the last 2 long screens of Skull Man, and the last screen of Drill Man, to be completed in a single use of Flash at the top levels.