No Magic
Beat the game once and enter NO MAGIC as a name.
Be maxim Kischine
Beat the game at least once and enter MAXIM as a name.
Get Hard Game Mode
Beat the game at least once and enter HARDGAME as a name.
Get Boss Rush Mode
Beat the game at least once.
Get Simon Game
Get Boss Rush mode (By beating the game at least once) than at the Konami Logo screen enter Up, Up, Down, Down, Left, Right, Left, Right, B, A, Select. Hopefully you recognize that code. Now pick Boss Rush Mode.
Get Sound Check
Rescue Lydie and Maxim to get the good ending of the game. * These codes are from the Japanese version of the game entitled 'Castlevania: White Night Concerto' and are expected to, but may not, work on the U.S. version.
Hard mode
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.
Encyclopedia mode
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.
Collectibles mode
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.
Easy experience
When you enter the Room Of Illusion early in the game, you will encounter small flying enemies directly at the entrance. They are worth about 4 experience points each and never stop appearing. You can use them to level up as much as desired. A good way to kill them is to hold [B] so that your chain will just sit therem killing all the enemies as they appear.
Other warp room
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.
Boss Rush message
Enable the "Play as Classic Simon" code and complete Boss Rush under the hard difficulty setting. You will see your time as usual, but there is also an ending sequence afterwards. It shows the castle from a different position. After a few seconds the castle will fade and a message reading "Simon Belmont forever" will appear.
