Hoshi no Kirby: Yume no Izumi Deluxe CodeBreaker Codes (Japan)
This page contains CodeBreaker cheat codes for Hoshi no Kirby: Yume no Izumi Deluxe (Japan). If you're playing on an emulator you can usually input codes very easily by accessing a tab off the top of the toolbar. Anyone playing on a physical Gameboy will need to purchase a physical Codebreaker device to use these codes.
If you're using an emulator and still can't figure out how to setup these codes, you're in luck! There's two common emulators for GBA games, the mGBA and VisualBoy Advance. Follow the link provided for the emulator you're using to be taken to a guide explaining how to get these codes working.
(Master Code) Must Be On
9EF48276 8201
BE78086A 26BD
AD120C68 819D
Morph Modifier (Only Use One Code At A Time)
Unlimited Health: 5717935F 6D46
Unlimited Lives: AD390C8A 66B0
Invincible: C7169EBA 2532
Unlock All Sub Games: CA4ACEFE AE1F