Cheats for Castlevania: Harmony Of Dissonance GameBoy Advance

Unlock Boss Rush mode, then hold L + R at the Boss Rush menu. Keep the buttons held until the difficulty setting is selected. You will now control Maxim in Boss Rush mode....

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....

Enter HARDGAME as a name after completing the game at least once. A voice can be heard at the start of the introduction to confirm correct code entry....

Enter NO MAGIC as a name after completing the game at least once....

Enter MAXIM as a name after completing the game at least once. He is faster and jumps higher than Belmont....

Beat the game with the good ending (where you rescue Maxim and Lydie)....

Get the Monster Tome relic during game play to unlock the "Encyclopedia" option at the "Secret Info" menu, which details all monsters that you have defeated....

Get any collectible during game play to unlock the "Collectibles" option at the "Secret Info" menu, which lists all the collectible items that you have found....

Beat 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....

The Rare Ghost can only be seen in specific parts of the castle. The easiest is in the room below the Clock Tower B warp point. Keep entering and exiting the room until you see it. Note: It will appear twice every twenty times at ...

When you are in a warp room between Castle A and B, press Down + A to teleport to another warp room on the map. For example, if you are in a warp room in castle A and press Down + A, you will warp to another warp room....

Go to Castle B's Skeleton Cave. First, have the Griffin's Wing and go into the double exit save room near the entrance area with the big pillar. While in the save room, save the game then use the Griffin's Wing and go through the ...

You must be at level of 45 or higher. In the start of the battle, equip the Wind Book and use the Punch sub-weapon to give off a short blast that does 300 damage or more. This is very helpful when Maxim powers up and shoots copies...

Once you can play as Maxim, you can do spells that Juste cannot. For example, face the right side of the screen and press Left, Down, Right, Down, Left + B to duplicate Maxim. The two copies will fly around the screen, attacking e...

Get any collectible during game play to unlock the "Collectibles" option at the "Secret Info" menu, which lists all the collectible items that you have found....