Altered Beast (set 5, FD1094 317-0069)
ARCADE

Altered Beast (set 5, FD1094 317-0069)

Altered Beast (set 5, FD1094 317-0069) is an authentic, unmodified dump of Sega’s iconic 1988 side-scrolling beat ‘em up, originally built for Sega System 16 arcade hardware. The FD1094 317-0069 security chip was used in original arcade cabinets to prevent piracy, and this set 5 variant is one of the most stable, glitch-free versions of the game available for emulation, with all original assets, audio, and cooperative two-player functionality intact. Set in a fantastical interpretation of Ancient Greece, the game opens with the iconic line “Rise from your grave!”, as Zeus summons a resurrected Roman centurion to rescue his daughter Athena from the dark underworld ruler Neff. As you battle through hordes of undead soldiers, two-headed hellhounds, and demonic flying creatures, you will collect glowing Spirit Balls dropped by special enemies. Collect three Spirit Balls, and you will transform into a powerful beast form: a lightning-fast werewolf, a fire-breathing dragon, a stone-casting b

No download required
Save states supported
Works on mobile & desktop

The emulator loads after you press Start Game.

How to Play Altered Beast (set 5, FD1094 317-0069)

Move
WASD
ABAction
JK
XYShoulder
L;
STStart/Select
21

Save & Load States

  • F2Press F2 to save your current game state at any time.
  • F4Press F4 to load your last saved state.
  • F3Use F3 to switch between save slots.

Save states are stored locally in your browser. They persist across sessions but are cleared if you clear browser data.

Customize Controls

Click the gear icon on the emulator toolbar → "Controls" to remap keys.

Move
WASD
Action
JK|L;
System
2 Start1 Select
Save
F2SaveF4LoadF3Slot

Default layout for ARCADE. Remap in emulator settings.

About Altered Beast (set 5, FD1094 317-0069)

Altered Beast (set 5, FD1094 317-0069) is a classic ARCADE game you can play online for free in your browser. No download or installation is required — click "Play Now" to start instantly. Relive the experience of vintage console gaming with authentic gameplay, right in your browser on any device.

This title is part of the PLAYERETRO game collection, which features over 1000 classic titles across multiple systems. Use the keyboard controls shown above to move and interact. Save your progress with save states and enjoy Altered Beast (set 5, FD1094 317-0069) anytime, anywhere.

Play the authentic Altered Beast (set 5, FD1094 317-0069) arcade game online for free on PLAYERETRO. Enjoy the classic 1988 Sega beat 'em up with full, glitch-free emulation, no downloads required.

Game Guide

Mastering Altered Beast (set 5, FD1094 317-0069) is easy to pick up but rewarding to master, starting with its core arcade control scheme: use the 8-way joystick to move, crouch, or aim jumps, the first action button for punches and melee attacks, and the second button to jump. Your top priority in every stage is collecting Spirit Balls, which only drop from the white two-headed hellhounds that spawn at set intervals. Never let these hounds escape off-screen, and note that you will not lose collected Spirit Balls even if you lose a life, so you can safely take small hits to grab orbs if needed. Once you unlock a beast form, leverage its unique strengths to clear levels faster: the werewolf’s dash attack and wide lightning wave can wipe out entire groups of small enemies in one hit, the dragon’s flight ability lets you avoid all ground-based hazards while firing long-range fireballs, and the bear’s stone gaze can turn even mid-tier demonic enemies into fragile, easily destroyed rocks. For all boss battles, always enter the boss arena with a fully activated beast form, never enter with only 1 or 2 collected orbs. For the first stage Minotaur boss, use werewolf form to stay at mid-range, and hit his head with jump attacks while dodging his charging rams. For the third stage plant monster boss, use dragon form to float above his root attacks and spit fire directly at his glowing core to defeat him quickly. This set 5 ROM has no emulation glitches, so two-player co-op and all boss mechanics work exactly as they did on original 1988 arcade cabinets.