Gekido Advance: Kintaro's Revenge Passwords (GBA)

Gekido Advance: Kintaro's Revenge is a beat 'em up game for the Game Boy Advance. It is a sequel to the game Gekido. Unlike the previous installment, this game centers on one protagonist instead of multiple characters as seen in Gekido. The game focuses on Tetsuo, who has returned to his sensei's house only to be dispatched to a remote farming village where it seems as if the dead rise from the grave.

Upon further investigation, Tetsuo finds out that the village has been having strange happenings ever since the old temple became overrun with demons. When he returns to the village after talking to the old guardian of the Temple, the village has been attacked, supposedly, as one of the dying villagers says, by "...ravens..." Also, it seems as if all the children have vanished as well. (Wikipedia)

Passwords

Chapter Passwords (for Chapter 4 and 5)

Chapter 4 with all Credits (8): SMART

Chapter 5 with all Credits (9): YNUTS

Chapter Passwords (UK Version)
Chapter One - The Deathtoll Rises : Press Start Game d'oh!

Chapter Two - The Three Seals : MIMMO

Chapter Three - The Ancient Book : HURRY

Chapter Four - Searching For Koji : FLASH

Chapter Five - The Final Battle : QUEEN

Chapters 2-5 Passwords
These passwords work for the NA version of the game.

SACCO - Password for Chapter 2

TAPPO - Password for Chapter 3

TEMPO - Password for Chapter 4

BECCO - Password for Chapter 5

End of Game password
notte - end of game

Unlimited energy
For unlimited energy you have to insert CRAZY in the password menu. You will get back to the title screen after that.

Unlimited Energy (U.S. version)
Select Password from the title screen. When the password screen comes up, type in a code to either return to a stage or to generate an effect.

PIZZA - You will return to the title screen. Start a new game and you will have unlimited energy.

Unlimited Speed
Enter the password screen and type in ''STARS''. Tetsuo will now have Perma-speed.