Dr. Jekyll and Mr. Hyde (NES)

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Dr. Jekyll and Mr. Hyde
Dr. Jekyll and Mr. Hyde - NES.jpg
Platform: NES
Year: 1988
Developer: Advance Communication Company

Dr. Jekyll and Mr. Hyde is an action game, and the first game Advance Communication Company released in the USA.

In the game, you play as Dr. Henry Jekyll, on his way to his wedding with Miss Millicent. However, it won't be a walk in the park; as there are several people inconveniencing the good doctor to get to his wedding. Some of these include a man shooting ducks in the sky, a grave digger, but the most dangerous is the Bomb Maniac, who appears frequently and drops bombs near Dr. Jekyll. This causes the townspeople nearby to panic and run into Jekyll while they're trying to get away from the bomb. Also, Dr. Jekyll has no means of attack besides his cane, which can only be used for attacking bees. He can also hit the townspeople with it, but it doesn't affect them and only damages Dr. Jekyll. Hitting Elena McCowen with it automatically turns the good doctor evil. There are also some animals who will try to ruin the good doctor's day, such as a bird pooping extensively, a dog named Murphy, and a cat named Luna.

When Hyde takes too much stress, he will turn into Mr. Edward Hyde. The game then starts from the right and auto-scrolls to the left. You are playing the same stage that Dr. Jekyll was in, but at night and in reverse. If Hyde reaches the same spot Dr. Jekyll was defeated at, the Gods will intervene and strike him with lightning and kill him. However, Mr. Hyde has an advantage over Dr. Jekyll; he can attack enemies. He can either punch with the B button, or by holding Up and pressing B, you will fire Mr. Hyde's Psycho-Wave, a powerful weapon that goes in a crazy wave-like pattern and will dispatch most enemies in a single hit. When you are Mr. Hyde, you must go back to being Dr. Jekyll as quickly as possible. To do this, you must kill as many enemies as possible, which reduce the stress meter. When the meter fully goes from the H to the J, then the player will return to Dr. Jekyll where he last collapsed.

The game is one of the first to have more than one ending, which is decided whether you finish the game with Dr. Jekyll or Mr. Hyde. Hyde can pass Jekyll's place on the final stage without fear of getting struck by lightning because he goes up to the rooftops, thus separating their paths.

The Japanese has 6 levels, and the USA version reuses some levels. Also, both versions have the stages in a different order.

The game was received poorly by critics.


Dr. Jekyll and Mr. Hyde - NES - Title Screen.png

The game's title screen.

Houma ga Toki - FC - Title Screen.png

The Japanese version's title screen.

Dr. Jekyll and Mr. Hyde - NES - Gameplay 1.png

Dr. Jekyll dodging enemies.

Dr. Jekyll and Mr. Hyde - NES - Gameplay 2.png

Mr. Hyde attacking enemies with his Psycho-Wave.


The game has a soundtrack of 14 songs, which was quite a lot for an action game from the 80's. One bit of trivia is that the Title Screen music in this game was previously used in the game Rygar (NES), though pitched in the key of G, rather than A. Another fun piece of trivia is that an arrangement of Dr. Jekyll's theme played on a Japanese commercial advertising the game. However, only a few second of the song can be heard. Some believe that ACC ripped off Tecmo, but in reality, Michiharu Hasuya composed the music for both games. To create music on the NES, Michiharu had to write the music in 6502 assembly language, using a sound driver he modified from Yoshiaki Inose.

There are two main themes; one where you're Jekyll, and the other when you're Hyde. Some of the other characters/enemies in the game have their own themes as well, such as Elena McCowen, who can hurt the good doctor by her awful singing.


# Title ComposerArranger Length Listen Download
001 Title Screen Michiharu HasuyaMichiharu Hasuya 0:45
002 Henry Jekyll Michiharu HasuyaMichiharu Hasuya 1:16
003 Elena McCowen Michiharu HasuyaMichiharu Hasuya 0:19
004 Rachel Theme 1 Michiharu HasuyaMichiharu Hasuya 0:17
005 Rachel Theme 2 Michiharu HasuyaMichiharu Hasuya 0:05
006 Throwing Women Michiharu HasuyaMichiharu Hasuya 0:26
007 Jekyll to Hyde Michiharu HasuyaMichiharu Hasuya 0:05
008 Edward Hyde Michiharu HasuyaMichiharu Hasuya 3:48
009 Carotta Michiharu HasuyaMichiharu Hasuya 0:19
10 Nunu Michiharu HasuyaMichiharu Hasuya 0:25
11 Onoria Michiharu HasuyaMichiharu Hasuya 0:31
12 Hyde to Jekyll Michiharu HasuyaMichiharu Hasuya 0:06
13 Ending (The Wedding March) Felix MendelssohnMichiharu Hasuya 0:43
14 Unknown Michiharu HasuyaMichiharu Hasuya 0:43


(Source: Music comparison, sound code comparison; Game lacks credits.)

There are no credits in either the USA or Japanese version of the game, as well as their manuals. While there is no concrete evidence Michiharu Hasuya composed the music to the game, there is more than enough circumstantial evidence to prove that he wrote the music to this game. First, Michiharu confirmed on his Facebook page before it was deleted that he composed the music to Rygar (NES), which shares a track with Dr. Jekyll and Mr. Hyde, as well as identical musical styles. The game also uses Michiharu's sound driver. Also, the developer Advance Communication Company would go on to credit Michiharu in several of their games. While the other main audio staff at ACC were Osamu Kasai and Masaaki Harada, the game does not match their musical style. They also have never been credited in a game that uses Michiharu's sound driver.

Game Rip






Audio Devices

The game uses the RP2A03, and uses Michiharu Hasuya's NES sound driver.


  Japan.svg   Japan
Jekyll Hakushi no Houma ga Toki - FC.jpg
Title: ジーキル博士の彷魔が刻 (Jekyll Hakushi no Houma ga Toki) (Dr. Jekyll's Hour of the Wandering Monstrosity)
Platform: Famicom
Released: 1988-04-08
Publisher: Toho
  USA.svg   USA
Dr. Jekyll and Mr. Hyde - NES.jpg
Title: Dr. Jekyll and Mr. Hyde
Platform: NES
Released: 1989-04-??
Publisher: Bandai