Catalogue of Arcade Emulation Software - the Absolute Reference

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Altered Beast (set 8, 8751 317-0078)

Altered Beast (c) 08/1988 Sega.

The goddess Athena has been abducted by the Lord of the Underworld. Her father, the great god Zeus, searched for a brave warrior strong enough to save her. He chose a brave warrior who died with honour & courage on the battlefield. Zeus raised the warrior from the grave and granted him the power to morph into a powerful, holy beast in order to do battle against the unspeakable horrors of the Underworld.

Altered Beast is a single player sideways scrolling beat-em-up. The game begins with the player controlling the human form of the resurrected warrior. During the levels the warrior will be attacked by a number of flashing animals. Destroying these creatures will result in an orb being dropped. If the player picks up an orb, he will begin his transformation from human into 'Beast'. Once three orbs have been collected, the transformation is complete. In beast form the player's character is much faster and stronger than in the human form, and also has the ability to throw fireballs at the enemy. At the end of each stage, after the boss fight, the player's special powers are taken from him and he once again reverts to human form.

The action in Altered Beast veers from being untypically slow-paced and sedate for a game of this nature, but the game's premise and graphical flair helped to seperate it from other rivals of the genre.


Sega System 16B hardware

Game ID : 317-0066

Main CPU : 68000 (@ 10 Mhz)

Sound CPU : Z80 (@ 5 Mhz)

Sound Chips : YM2151 (@ 4 Mhz), UPD7759 (@ 640 Khz)

Screen orientation : Horizontal

Video resolution : 320 x 224 pixels

Screen refresh : 60.00 Hz

Palette colors : 6144

Players : 2

Control : 8-way joystick

Buttons : 3



This game is known in Japan as "Juuohki".

Altered Beast was moderately successful, the player's ability to transform into different creatures being a big draw.

Alex and Stella from "Alex Kidd" are declared dead in the first stage of this game (Alex and Stella stones).

The small tail swinging gryphon that appears often in this game makes a comeback in "Golden Axe".

Pony Canyon / Scitron released a limited-edition soundtrack album for this game (G.S.M. SEGA 1 - D28B0002) on 07/07/1988

An Altered Beast unit appears in 1998 movie 'The Replacement Killers'.

The American release of the Sega Genesis (Mega Drive) in 1989 all came bundled with a port of this game, making it the first American Genesis game.


317-0066 : Standard 16B hardware as 'Technical' section describes it.

317-0076 : Uses an additionnal I8751 @ 8 Mhz

317-0078 : Uses an additionnal I8751 @ 8 Mhz


BIRD : 300 points

BULL WARRIOR : 500 points

DEMON WARRIOR : 300 points

FLYING DEMON : 500 points


FROG : 0 points

GOAT WARRIOR : 300 points


INSECT WARRIOR : 100 points

SNAKE : 500 points

SPIKED BALL : 100 points

TURTLE : 500 points

UNICORN WARRIOR : 300 points

WOLFS (BROWN OR WHITE) : 1000 points

ZOMBIE : 100 points

You also get points for clearing an area. These bonuses range from 20000 points to 100000 points depending on how fast you cleared the level and enemies killed.


* General strategies level by level...

LEVEL 1 : you start off in a graveyard on this level. You will immediately be assaulted by zombies and headless skeletons. Watch out for the tall, granite blocks since they usually release one of these enemies.

BOSS 1 : a pretty easy boss. It takes about 15 hits to put him down. This boss will throw five to seven heads at your location. The best way to counter this threat is to stay in one place and go into the gaps between the heads. When the heads quit falling, hit the boss a couple of times and repeat the above process.

LEVEL 2 : you will be going through the swamps on this level.

1) A big hazard are the frogs. They will latch onto your characters head and drain their energy. Rapidly move the joystick left and right to shake them off.

2) To kill the snakes, you have to hit either their rattle or head. You will be warned of their location by a rattle either sticking out of the ground or the air above.

BOSS 2 : the boss transforms into a giant plant with eyes. He will launch ten eyes, which will slowly drift toward your character. You must destroy all of these eyes to get to the boss himself. In order to score hits, you must hit the central eye. You have to be quick since this boss will put up another wall of eyes to block your attacks. It takes about 20 hits to eradicate this plant.

LEVEL 3 : you are now entering the caves. The biggest danger is all the crevices. Make sure you keep to the ledges and avoid falling or getting knocked off of them.

1) The Insect Warriors are pretty easy to take care of, although they can cause considerable problems if you are on a ledge.

2) To defeat the turtles, you must first get them out of their shell.

3) The demons and birds present the greatest hazard since they will knock you off the ledges.

4) A good tactic for all the enemies is to let them follow you. Then jump over a crevice and they will fall in.

BOSS 3 : this battle is a little harder. You will have to move around quite a bit to avoid taking damage. In order to affect this boss, you must push the cauldron all the way back to the wall until the dragon's head is sticking straight out. This boss launches rings of fire and ice so you must quickly push the cauldron back, get in your hits, and retreat quickly to avoid this attack. After 25 hits, this boss is toast.

LEVEL 4 : you have entered what appears to be a city.

1) You have already dealt with most of these enemies. Just use the tactics you used from the first level to take care of them.

2) The flying demons present a moderate threat. They will dive down on your character when you are stopped. The best way to deal with them is to entice them to attack then hit them when they are rising up again.

BOOS 4 : another rough boss battle. This time he takes the form of a blue dragon's head. You must hit this boss from underneath to affect him. He moves in a slow circle so time your jumps accordingly. He spits out a solid stream of fireballs. You can duck under most of them. For the ones you can't, just jump toward the boss. In addition to fireballs, he also launches one or two small red dragons to further harass your character. These can be taken out with normal attacks. After 30 hits, you can send this boss packing.

LEVEL 5 : the final level, you will be located in some ruins. You will encounter some pretty vicious enemies on this level. They each have strengths to their credit.

1) The Goat Warriors are quick. They come in for a quick strike and retreat.

2) The Unicorn Warriors jump around and make difficult targets to get a bead on.

3) The Bull Warriors can level your character in a single blow if you aren't careful.

4) The Spiked Balls will continuously roll into your character until defeated.

All these enemies work in tandem to wear your character down quickly and they tend to appear in mixed groups so you will have to do a lot of hitting and running to survive them.

BOSS 5 : the final boss and appropriately the toughest boss. The boss appears as a large warrior in the shape of a rhino. He has two attacks : The first one is basically going toe-to-toe with your character and beating the stuffing out of him. The second is a charge. The charge will be proceeded by steam coming out of the rhino's nostrils.

1) You will have to constantly move around to avoid this bosses attacks. You can defuse the charge and send this boss backwards by hitting him as he is charging.

2) The boss starts out as a gray color. He will turn red after about 30 hits. He will then turn purple after another 30 hits. 30 more hits and you have accomplished your goal.

Congratulations, you are now a god.


1. Altered Beast (1988)

2. Altered Beast - Guardian of the Realms (2002, Nintendo GameBoy Advance)


Developed by Team Shinobi 1988 summer : Fu., Tak., Tos., Mor., Nak., Kaw., Sat., Makoto Uchida (Uch.), Hkr., Has., Hag.


* Consoles :

Sega Master System (1988)

Sega Mega Drive (1988)

NEC PC-Engine (1988)

NEC PC-Engine CD (1989)

Nintendo Famicom (1990)

Sega Game Gear

Sega Dreamcast (2001, "Sega Smash Pack")

Sony PlayStation 2 (2005)

Sony PlayStation 2 (2006, "Sega Genesis Collection")

Nintendo Wii (2006)

* Computers :

Sinclair ZX Spectrum (1989)

Commodore C64 (1989)

Amstrad CPC (1989)

Commodore Amiga (1989)

Atari ST (1989)

PC [MS-DOS, 5.25''] (1990)

PC [CD-ROM, Windows] (1998, "Sega Smash Pack")

* Others :

LCD handheld game (19??) released by Tiger Electronics.


F.A.Q. by Kevin Butler A.K.A. War Doc