The Mask Laughs

The Mask Laughs is Chapter 10x of Fire Emblem: Shin Monshō no Nazo ~Hikari to Kage no Eiyū~. This chapter is reached if the player beats Chapter 10 in 15 turns or less on Normal Mode (each higher difficulty progressively adds 3 more turns to this limit). Alternatively, the player can fill the requirements by having 3 or more enemy Clerics survived in Chapter 10.