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Chimera Beast (prototype)

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Chimera Beast (prototype)

| 1993

Release type:
Units produced: Jaleco
Controls/Input Device: Control(joy8way), Buttons(2)
Number of Players: 2
More Creator:
More Coder/Software:
License from/Copyright:
SoundMix: Stereo
More Graphics/Artwork:
More Music/Sound:
Acting Talent involved:
More Machine Details:
More System Details:
Game Awards Nominations:
Game Awards Won:
Title a.k.a.:
Avg. Playtime:
MAME folder name: chimerab

Display: raster 256x224 @ 60.00Hz (60.00 pixclock)
Sound: 2 channels

Emulated in MAME via driver megasys1.c:
Status: good; Emulation: good
Graphic: good; Sound: good; Color: good
Palette size: 1024; Savestate: unsupported

b1.bin with 524288kb
sha1:4416cb17d3121ec00bceff2614dc424a359f127a crc:29c0385e
b2.bin with 524288kb
sha1:ac93f56c998f28e3f453fcdbf85f3217c9ae97de crc:6e7f1778
chimerab.mcu with 262144kb
sha1: crc:
prg2.bin with 262144kb
sha1:df204db38995ff4c898b8a0121834ec1b84b215c crc:821dbb85
prg3.bin with 262144kb
sha1:60aaee1cf7aa15ffa4962d947747b0ae7cdcfd8a crc:70f1448f
prg7.bin with 65536kb
sha1:68e7d344ebfffe19822c4cf9f7b13cb51f23537a crc:83b9982d
prg8.bin with 65536kb
sha1:66f5d5a73f5e8cba87eac09c55eee59117d94f7b crc:a682b1ca
prom with 512kb
sha1: crc:
s1.bin with 524288kb
sha1:db4bff3c02f22cc59a67b103fd176f4d88531f93 crc:e4c2ac77
s2.bin with 524288kb
sha1:e36c4d18209add696982e36e84397ec51b9a9e7e crc:fafb37a5
scr3.bin with 131072kb
sha1:0492be1a92baacb80ed5bdc0167beda3e9163d76 crc:5fe38a83
voi10.bin with 262144kb
sha1:8d89fa90f38fd102b15f26f71491ea833ec32cb2 crc:67498914
voi11.bin with 262144kb
sha1:6d8659d0fc6980ffc1661702fc787737448dce9d crc:14b3afe6
Mameinfo.dat entry:
0.37b10 [Yochizo]


- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.

LEVELS: 8 (restarts once)

Other Emulators:

* FB Alpha


* Raine

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Mars Matrix: Hyper Solid Shooting

Romset: 2016 kb / 8 files / 457.8 zip

Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
Chimera Beast (c) 1993 Jaleco.

A horizontally scrolling shoot'em up where 1 or 2 players control creatures known as 'eaters' which are capable of eating other creatures and taking their DNA, thus acquiring their abilities or characteristics.

Chimera Beast takes place on a planet which is described as distant and Earth-like. The planet is overrun by animals known as eaters, capable of eating other creatures and acquiring their abilities or characteristics. The player controls one of these eaters and progresses through the game by means of evolution, consuming microscopic organisms in the first stage, fish in the second, and so on. When the player's creature gets big enough to take on humanity, the goal of the game is revealed. The planet's humans have developed space travel, which the player must thwart, so as not to give the eaters a means of escaping the planet. There are two possible endings: one in which the player is able to stop the eaters from escaping the planet, and one in which the eaters do escape and, we are told, will eventually make their way to Earth.

The chief innovation of Chimera Beast is its power-up system. Instead of collecting gun upgrades as in most games of this genre, the player's eater enhances itself by eating other creatures and assuming their abilities and defenses. Instead of simply having various types of projectile weaponry, the game attempts to make these new abilities as varied as possible. Consuming a crustacean might give the player's eater a hard protective shell, for example, while an insectoid creature might offer a poisonous tail instead. The game even includes the ability to use cancer as a weapon.

Another difference from typical shooter mechanics is that the player's eater does not die after being hit. It has a life bar, which can be charged by consuming enemies. It is even possible to eat enough charge the life bar past its starting position, creating a larger eater which is not only more powerful but can take more damage as well.


Jaleco Mega System 1-C hardware

Main CPU : Motorola 68000 (@ 12 Mhz)
Sound CPU : Motorola 68000 (@ 7 Mhz)
Sound Chips : Yamaha YM2151 (@ 3.5 Mhz), (2x) OKI6295 (@ 30.303 Khz)

Players : 2
Control : 8-way joystick
Buttons : 2


Developed by C.P. Brain. Jaleco never officially released this game to the market. A rare advanced prototype version (fully complete) was available in March 1993.

The enemies in Chimera Beast are mostly animals, some with equivalent Earth versions and some without. Some of the enemy creatures include jellyfish, an eel-like agnathan, clown fish, clams, flying squirrels, and moles. Once the player reaches the human stage, they will face war vehicles such as tanks and jets.

In Stage 6, destroying the jeeps that are on the ground makes a pair of humans appear. They are Allen and Rick, from Jaleco's 1991 release, "64th Street - A Detective Story".


Chimera Beast features both a Good and Bad endings.


Executive produced by : Tokuhiro Takemori
Directed by : Shigeru Hashimoto
Game designed by : Y. Hiroyama
Programmed by : Manbow
Bg designers : Helluder, Toukaidou Nozomi, Reiko Takano, Tutomu Rukada
Obj. designers : Sigeru, Toukaidou Nozomi, Nanae
Creatures designed by : Y. Hiroyama
Sounds & Music composed by : Kiyoshi Yokoyama


Edit this entry:

Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
00000000 FFCBCF 00000009 FFFFFFFF Infinite Lives PL1
00000000 FFCBCB 00000009 FFFFFFFF Infinite Energy PL1
00000000 FFCCD3 00000000 00000002 Invincibility PL1
60000000 000000 00000000 00000000
00000000 FFCC7F 00000009 FFFFFFFF Infinite Lives PL2
00000000 FFCC7B 00000009 FFFFFFFF Infinite Energy PL2
00000000 FFE053 00000000 00000002 Invincibility PL2

Credit Pugsy's MAME Cheat file