You get all of the hats in Find Mii by completing two playthroughs.
As listed by IGN, the hats from the first playthrough of Find Mii are
Red Pikmin Hat
And the hats from the second playthrough are
Blue Pikmin Hat
Yellow Pikmin Hat
There is no way to predict if they will scare your Street Pass Miis. Generally if the Mii is level 5 or higher they will not be as likely to be scared off by mummies (unless it is the Marauding Mummy, who tends to scare all Miis).
The best way to get past them is to make sure you have more than one person in your team - they will only scare the first ...
There are different potions you can buy, and they each do different things, and cost a different number of Play Coins to buy and use.
The potions are:
Vial of Valor - Calls back 3 heroes who have left the fight, costs 8 coins.
Power Potion - Boosts your heroes' levels, costs 20 coins.
Dispelling Draft - Gets rid of gas spewed by enemies (such as the curse ...
These locatons unlock in future playthroughs. Unfortunately when you finished the game (which I am assuming you did) and you selected the secret mission you made yourself ineligible on this playthrough to unlock the doors. See this IGN thread. It is generally suggested to play through the game multiple times unitl you have visited all of the paths and THEN ...
When two heroes in a row are wearing similar colors, the same colors, or particular combinations of colors, they can "Create Team" to create a combo attack. This is the third option under "Attack" and "Magic" in your menu.
When your teammate joins the fight, together they'll have the option to "Combo Attack." If the colors are similar (ie, light green ...
The hats you need to unlock Find Mii 2 in the first playthrough are
red pikmin hat
on the second playthrough the hats are
blue pikmin hat
but they are in random order but won't effect your progress of getting to find ...
According to Shadowmathfreak's FAQ, "The mummy will scare off the first hero in line unless the Mii’s color is the same as the mummy." So to stop being ambushed by the mummy, your first hero that the mummy encounters needs to be the same colour as the mummy in question. In the case of a bright/dark/etc room with a mummy, you need to clear the room's ...
If you are doing the regular quest in Find Mii 2, the final boss is the Dark Lord, which is essentially a tougher version of the Ultimate Ghost. He uses level down magic and is impervious to most kinds of Mii magic.
In the secret quest, it is the Dark Emperor, who is essentially a tougher version of the Dark Lord.
If a mummy is in the room, then it has a chance to scare off the first hero in line so that they don't get a turn. This occurs before the hero gets any action - including "Return" or "Team Up".
Higher-level heroes seem to be a little less susceptible to this. A level 5 hero has shrugged off the ambush, and been able to take his turn.
When you're ...
This guide on IGN has all the details you need to know to succeed in Find Mii II, including two illustrations showing the locations of all hats in the standard quest and secret quest.
Find Mii II hats:
Find Mii II secret quest hats:
You will get the key after completing your second playthrough of the first part, and then you will have to play through it a third time to finally clear all the rooms. I had played the secret quest first so I don't know how that matters. My playthrough was: first part x1, secret part x1, first part x2, first part x3 so far. I don't know if it is required for ...
A quote from Dark Toshi from Gamefaqs who has a method of consistently acquiring the golden key
I took the following path (1-2-5-6-10-11-18-26-27-32-33-34-35-36) to ensure that I didn't get the Silver Key by completing rooms 19 & 25.
I killed the Ultimate Ghost each time with a team of two level 7 reds via combo magic. As a result, the fight ...
Also note, if you don't have a same or similar Mii next in line, the "combo" option won't be there. Its good to pay attention to the Miis you have going in and use the "return" option sending some to the back of the line to make the most of them.