Hybrid Heaven

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Hybrid Heaven
North American Nintendo 64 cover art
Developer(s)Konami Computer Entertainment Osaka
Director(s)Yasuo Daikai
Producer(s)Kazuhiko Uehara
Designer(s)Yasuo Daikai
Tatsuya Shinkai
Tetsuya Matsui
Keiji Matsukita
Composer(s)Nobuyuki Akena
Yusuke Kato
Platform(s)Nintendo 64
  • JP: August 5, 1999
  • NA: August 31, 1999
  • EU: September 24, 1999
Genre(s)Action role-playing
Mode(s)Single-player, multiplayer

Hybrid Heaven[1] is a video game developed by Konami Computer Entertainment Osaka and released for the Nintendo 64 in 1999. This game is most notable for its peculiar mix of genres: it has aspects of both role-playing video games and action-adventure games. The designers had hoped to create a "new style RPG battle system".[2] It is also one of the few Nintendo 64 titles to support a widescreen mode.


Hybrid Heaven takes many elements from standard 3-D action-adventure games, such as Tomb Raider. The player can move in any direction, jump, crawl, climb, and shoot. The player must solve puzzles by disabling electronic weapons or through skillful maneuvering.

However, when battling a monster (called a "biological weapon" in Hybrid Heaven), the game switches to a completely different mode. The player is constrained to a small room and can no longer jump, crawl, or climb. The monster and the player move around for strategic position in the room. When they are close enough, and have built up enough energy, one or the other will decide to attack. At that point time freezes and a single round similar to a role-playing video game turn ensues: the attacker picks an attack from a list, the defender picks a defense, and the results are displayed. After the attack, both monster and player return to jockeying for position in real-time. All of this can happen within seconds, which keeps the action flowing more naturally than in most RPG's.

Because of this, the Vs. Battle Mode plays like a regular 3D fighting game but with some unique RPG elements. In addition to regular punching, kicking, and grappling attacks, energy can be saved up to five times to allow for combos, achieved by either the player editing their own during a fight (one move at a time), or by choosing preset or saved combos. The battle system of Hybrid Heaven has a strong emphasis on leveling up. Experience using an offense or a defense directly correlates with the player's statistical abilities when performing that move in the future, with separate statistics for each limb, the torso, and the head.

The game includes Rumble Pak and Expansion Pak support.


Players assume the role of Mr. Diaz, a synthetic human hybrid created by aliens. In the game's introduction, he turns on his masters when he kills a synthetic human intended to replace the President's bodyguard, Johnny Slater. Diaz finds himself in a massive underground installation created by the aliens under Manhattan. As the game progresses, it is revealed that the player is actually assuming the role of Slater, who was disguised as Diaz by the Gargatuans. The Gargatuans are an alien race around three feet tall who, after being betrayed by a member of their species who awoke from hypersleep and piloted the ship to Earth, are forced to help said traitor with his genetic experiments. The alien creates clones and hybrids (a genetic mix of human and Gargatuan DNA, resulting in extra-powerful creatures) and intends to conquer the earth through a replacement of its leaders, beginning with the United States. A few Gargatuans have escaped the traitor, and conduct an underground resistance in the woodwork. They found Johnny after he had been cloned and disguised him as Diaz, who they incapacitated and kept unconscious. Johnny regains his memories, which were blocked while he was disguised. The player then must travel even further down the bunker in the hopes of stopping the aliens from replacing the president with a clone and by request of the Gargatuans to defeat the traitor. Johnny's personal motive to help him stay focused is that he must make it back in time to meet his girlfriend under the Christmas tree on the White House lawn.

Enemies included clones (unremarkable creations, created mainly for menial labor), agents (resemble the public perception of the secret service, men in black suits with sunglasses), mutants (genetic experiments that resulted in vicious creatures, presumably for military), robots (mostly humanoid, but some were straight-out mechs), and hybrids. One hybrid, created to replace the Secretary of Defense (or possibly State), is Johnny's antagonist for much of the game, before a final showdown wherein the alien creature explains much of the plot.


As games of this genre were seldom seen on the Nintendo 64, the game carried a certain amount of hype to it. For instance, N64 Magazine gave Hybrid Heaven many multipage previews and devoted two covers to it.[citation needed] The game was met with mixed reviews ranging from decent scores, such as the 7/10 it received from IGN,[3] to low scores such as the 4.1 it received from GameSpot.[4]

In Japan, Famitsu magazine scored the game a 30 out of 40.[5]


  1. ^ Hybrid Heaven (ハイブリッドヘヴン, Haiburiddo Hevun)
  2. ^ "Hybrid Heaven Interview".
  3. ^ "Hybrid Heaven Review".at IGN
  4. ^ "Hybrid Heaven Review".at Gamespot
  5. ^ ニンテンドウ64 - ハイブリッドヘブン. Weekly Famitsu. No.915 Pt.2. Pg.32. 30 June 2006.