Hahaha whoops. Yeah I guess a description would help. You have to collect 20 power, or whatever the purple tiles with the beefy arm are.
I think I'm just bad at this game.
So a few things; You should only have that single quest active when you go in so the dungeon is easier. You need to match tiles every single moment, even in transition. If you come across a chest, hold on until the very last moment before opening it so you can match as many other tiles in the meanwhile. Also, make sure you have all the monsters recruited you can at the moment, so any bonuses to how much you get from the tiles is maximized.
PS. You will run across similar quests in the future. I remember 36 STR being one of mine at some point so I dunno, you might have issues with that. Or not.
Ah ok, i've been waiting till i hit a chest or an enemy before matching anything besides the empty boxes. I'll try that.
Once you recruit the monsters on their on your boat hopping around, do you have to do anything else to get them to come with you or anything like that?