Quoted from swampfire:This one is simple: take a Chapter mode into Demodog 1 and play them together, or start a multiball. If you start DD1 by itself it means you screwed up, and now you have to get past the demodogs before you can make any further progress. It’s a fun mode to me, and a great way to boost a multiball, since now everything you hit scores points.
Exactly, it should be stacked with a mode or multiball. Or you could reduce the timer on the mode in the menu if you are struggling with it.