 If the player encounters an FOE in an area with multiple FOEs, it is possible for a second or even third FOE to join the battle if it reaches the party before they defeat the first one.Like most early RPGs, "Etrian Odyssey" uses custom characters from a number of different character classes.While only five characters can be in the party at a single time, a much larger number can be created and kept in waiting back at the "guild hall".