From playing the demo, it seems like the is more about picking the right denpa men before going into the dungeon rather than tactics in a battle. The auto battle routine seems to pick the options after the enemy select attacks, so it will do things like revive someone who just died in the same turn. Surely there has to be reason to not use auto battle, does it not use items?
Hey there, KarmaCow. Although it's *definitely* important to make the right choices as to which kinds of Denpa Men you take into any given dungeon, that hardly makes the game a cakewalk -- even if you decide to use the auto-battle option.
I actually don't use the auto-battle options myself all that often (esp. the one that allows the AI to use skills), as the Ai just isn't smart enough for me most of the time. The only time I really use it is if I'm only battling one or two enemies that I'm sure I can overpower using headbutting alone. Other than that kind of situation, though, I tend to use a mix -- I choose specific commands for some of my Denpa Men and then tell the remainder to run in a headbutt the enemies in question.
I think you'll find you have to do this fairly often during the full game -- especially in the dungeons you start to encounter about halfway through the adventure. Even then, victory's hardly guaranteed unless you're at least a bit over-leveled.