NOW, RISE FROM YOUR GRAVE & POWER UP!!!
Altered Beast (獣王記 Jūōki, literally "Beast King's Chronicle", in Japan) is a 1988 arcade game developed and manufactured by Sega. After its initial arcade release, it was ported to several home video game consoles and home computers. Makoto Uchida was the primary developer of the game and also was responsible for the creation of Golden Axe.
Altered Beast is a side scrolling, platform, beat 'em up game that puts the player in control of a centurion who had died in battle. The centurion has been raised from the dead to rescue Zeus' daughter, Athena. The player battles undead and demonic hordes, controlling the shapeshifting hero. He must fight through several levels in order to save the kidnapped goddess. Although 'Centurion' was a rank in the Roman Army, the game takes place in a setting resembling Ancient Greece, complete with gods, temples and ruined Ionic columns.
The player must battle armies of fictional and undead creatures to defeat the evil Demon God Neff, who is holding Athena captive. Along the way, the player has to obtain "Spirit Balls" (power-up orbs which increase his strength and size) from defeating white two-headed wolves (it is hinted that this wolf might be the Cerberus dog of Greek Mythology). These enable the player to turn into a superhuman (stage one: "giant man", stage two: "superman"...). When three are collected, the hero transforms into a beast with exceptional abilities.
source: Wikipedia
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