"Judo will be good for keeping your movements precise. Martial arts moves will help you aim and shape your patterns. As for puzzles, that is perfect. Do you want to know a secret?" She leaned in. "Most victories in danmaku come from forcing your opponent to move into a shot they didn't see rather than hitting them directly."

She reached up and ruffled his hat gently. "You should look into what you can do with curving bullets and lasers. Perhaps coupled with a spiral of normal shots or a simple spray of random shots. With time and practice you'll find a way to fire your shots in ways your opponent wont predict."