Castlevania: Harmony Of Dissonance Cheats (GameBoy Advance)

Acquire the Monster Tome relic.

To unlock Hard Mode, beat the game once, then enter HARDGAME as your name.

Unlock Boss Rush Mode and play it once. Reset your GBA, and during the Konami title
screen, press Up, Up, Down, Down, Left, Right, Left, Right, B, A. Then start Boss Rush
Mode to play with Simon Belmont.

Achieve the best ending in the game. Start a new game and enter MAXIM as your name.

Beat the game with the best ending to unlock the sound test mode.

To play without magic, beat the game once, then use the name NO MAGIC when starting a new
adventure.

Beat the game in any way to unlock Boss Rush mode. You wil have to fight a series of
bosses from the game in succession. The number of bosses depends on the difficulty you
select. Higher difficulties are unlocked by beating the easier ones.