The Himarra Badge is a special item that is only found in Dark Cloud 2. Its in-game description reads : "A mysterious badge that lets you change into a Himarra." This special item is the first Monster Badge that you'll obtain in the game. It'll let Monica transform into a Himarra when in Dungeons' floors levels. This can be done by pressing R3 in Dungeons, like you would do for Max to use the Ridepod.