Lean into using autobattle

Speaking of random battles, you’ll fight a lot of them in Dragon Quest III HD-2D. For reference, I popped the achievement for fighting 1,000 random battles before I saw the end credits. Under normal circumstances, taking an extra minute to specifically plan out your attacks in every battle might not sound like a big deal. But over that many battles, you’ll add literal hours of unnecessary busywork to your playthrough.
Fortunately, Dragon Quest III is designed with autobattle in mind. Labeled “Tactics,” in the combat menu, you can assign specific behaviors to your party that will save you the time of manually issuing commands each turn yourself. What’s more, the autobattle AI is pretty smart overall and typically uses the best move possible depending on your orders. While I wouldn’t use autobattle for major boss battles, it will make normal encounters way faster.