Description: Castlevania: Harmony of Dissonance for GameBoy® Advance brings players back into the world of Dracula, a place where unspeakable monsters lurk and powerful magic rules. Only 50 years have passed since Simon Belmont liberated the land from the menacing curse of Dracula. Now Juste Belmont – the latest scion in the legendary family of Vampire hunters -- must take up his whip and storm a mysterious castle in search of his childhood friend Lydie.
Unlock Simon Belmont Unlock Boss Rush Mode and play it once. Reset the machine and during the Konami title screen, press up, up, down, down, left, right, left, right, B, A. Then start up Boss Rush Mode to play with the original vampire slayer! Simon is much slower and doesn't have the fancy moves that the others have. He does hit MUCH harder though, so he isn't that bad of a choice to use.
Play as Maxim Kischine Enter "MAXIM" as a name after completing the game at least once to play as Maxim Kischine. He is faster and jumps higher than Belmont.
No magic Enter "NO MAGIC" as a name after completing the game at least once.
Hard mode Enter "HARDGAME" as a name after completing the game at least once. If you entered the code correctly, you will hear a voice at the start of the introduction.
Boss Rush mode Successfully complete the game to unlock the Boss Rush option. There are three levels (easy, normal, and hard) that must be unlocked by playing each in succession, starting with easy.
Classic Simon Unlock Boss Rush mode, then press Up(2), Down(2), Left, Right, Left, Right, B, A, Select at the Konami logo. Select Boss Rush mode to play as the NES version of Simon.
Sound test mode Successfully complete the game with the good ending (where you rescue Maxim and Lydie).