The complete Bio Menace Trilogy has arrived on Commodore Amiga

Amiga Developer Astair86 has brought Apogee Software’s 1993 DOS action game Bio Menace to the Commodore Amiga. And this isn’t just a quick demo or a single converted episode. The release, called Bio Menace Thrillogy, includes the complete game: Dr. Mangle’s Lab, The Hidden Lab and Master Cain. It’s a native Amiga port rather than a DOS version running through emulation. Each episode comes as its own package, so players can copy it across to an Amiga and start playing without a complicated installation routine. For a game that spent its original life firmly on the PC, that’s quite a change of scenery.

Bio Menace started life as a DOS action game

Apogee released Bio Menace for MS-DOS in 1993. Jim Norwood designed the game, which followed Snake Logan, a CIA operative sent to investigate trouble in Metro City. Things go wrong almost immediately.

Snake’s reconnaissance mission ends with him on the ground, surrounded by mutants, armed guards and assorted machinery that would rather see him dead. From there, the player works through a string of compact side-scrolling levels while searching for keys, rescuing hostages and blasting anything blocking the route forward.

The game came from the same period when Apogee was heavily associated with episodic shareware releases. Players could get the first episode and then buy the remaining chapters if they wanted the complete game. There’s also some familiar technology underneath it.

Bio Menace was built using technology connected to id Software’s Commander Keen games. That helps explain the scrolling, platforming and general structure, although Bio Menace puts much more emphasis on firearms and enemies than Commander Keen ever did. It’s part platform game, part shooter.

The full trilogy makes the jump

The Amiga release includes all three episodes, and they remain separate rather than being merged into one large executable. That keeps things simple. Each episode has its own directory, game data and documentation. You can keep all three on the same machine or just copy over the episode you want to play. Starting the game is done from the Amiga shell rather than through a traditional installer.

The basic system requirements are fairly modest. You’ll need Kickstart 2.0 or later, around 1 MB of Chip RAM and some Fast RAM. The port has been developed and tested with WinUAE, PiStorm-based machines and Vampire V4 hardware. There’s also support for a CD32 controller, although that part wasn’t tested on physical CD32 controller hardware before release. So this isn’t aimed only at one exact Amiga setup. There’s some flexibility in how you can run it.

Moving a PC engine to the Amiga

Getting Bio Menace running properly on an Amiga involves more than changing a few controls. The original game was written around DOS-era PC hardware and its own way of handling graphics, sound and scrolling. The Amiga works very differently, especially when it comes to display hardware.

Amiga developer Astair86 handled the Amiga side of the project, including the platform code, porting work, audio tools and testing. The project uses reconstructed source code based on the original Bio Menace releases. The result keeps the original game logic while replacing the parts that need to talk directly to the Amiga. A couple of old DOS quirks remain.

The FILE_ID.DIZ file needs to stay exactly as supplied. Bio Menace checks it as part of its original protection system, and changing the file can stop a level from completing correctly. It also means players should be careful when transferring the game between systems. There’s another setting worth leaving alone. Don’t enable the SVGA option. It can cause display corruption on the Amiga version.

It still plays like Bio Menace

The port doesn’t try to redesign the game. Snake Logan still runs, jumps and shoots his way through the same levels. You start with a basic weapon, then collect stronger temporary weapons and other useful items as you go. Ammo matters.

You can’t always fire endlessly and expect everything to work out. Some enemies take more punishment than others, while certain stages reward exploring instead of simply charging from left to right.

Keys open doors and new areas. Hostages give you something else to look for. Traps and environmental hazards regularly slow things down. That makes Bio Menace feel a little different from a pure run-and-gun shooter. You’ll spend plenty of time shooting mutants, but there’s also a fair amount of platforming and searching involved. Anyone familiar with Commander Keen will probably recognise parts of the movement and level structure. The guns, mutants and heavier combat give Bio Menace its own identity.

A new platform for an old Apogee game

Bio Menace never received an official Amiga release when it first appeared in 1993. Astair86’s version changes that by bringing all three episodes across in one package built specifically for Amiga systems. The original levels, graphics and game structure are still there. What’s changed is the machinery underneath them. For Amiga owners, the pitch is refreshingly simple. Bio Menace now runs on the platform, and the complete trilogy comes with it.

Spread the love