Have one of the following Game Boy Advance games in the cartridge slot to unlock the corresponding bonus. Note: Some bonuses are only available in the Japanese version of the game.
Because this game can't link to Boktai 2 to earn Crossover Points, this new system was created to give them to you. By Slotting in Boktai 1, 2 or 3, the Samurai Statue in GargoyleCastle turns into an Otenko Statue, and the 100 Warrior wacking minigame turns into a 1000 bat wacking minigame for crossover points. Also, an Zoktai trader appears in Oran Area 2 to exchange your Crossover Points for chips
Go into full syncro and switch to the Navi indicatedbelow and you should get the following.
If you get all seven symbols and defeat NebulaGrey SP in one version of the game, ForteXX replaces ForteSP in the opposing version. Example: Defeat NebulaGrey SP in Team of Blues, and you will unlock ForteXX in Team of Colonel.
ForteXX has a 150 regenerating Black Barrier, 4000 HP, and much more powerful attacks.
Every time a Liberation Mission is completed, you will get a prize depending on the number of phases you completed it in.