The popularity of the game on the Amiga (initially released) led to its rapid porting to many other platforms: Panasonic 3DO, Acorn Archimedes, Amstrad CPC, Apple IIGS, Macintosh, Atari Lynx, ST, Commodore 64, Amiga CD32 Amiga CDTV, MS-DOS, Nintendo's NES, SNES, Game Boy, Game Boy Color, SAM Coupe, Sega Game Gear, Sega Master System, Sega Megadrive (Genesis), Sinclair ZX Spectrum and it is considered to be one of the most widely-ported video games of all time. The game is divided into 120 levels! Each level comprises both destructible landscape elements such as rocks, indestructible sections such as steel plates, and numerous obstacles including chasms, high walls, large drops, pools of water or lava, and booby traps. Each level also includes one or more entrance points and one or more exits. The goal is to guide a certain percentage of the green-haired, blue-shirted lemmings from the entrance to the exit by clearing or creating a safe passage through the landscape for the lemmings to use. Unless assigned a special task, each lemming will walk in one direction ignoring any other lemming in its way, falling off any edges and turning around if they hit an obstacle they cannot pass. They die if they fall from a great height, fall into water or lava or off the map, or get caught in a trap!
Graphics on the ST version are good, colorful with great animation of the tiny lemmings sprites although I've noticed a few less colors compared to the original Amiga (and Acorn, PC) version. I was a bit disappointed with the sound on the ST as I would expect more of it; the game does not use any extreme graphics hardware techniques (parallax scrolling, extra color-palettes etc) so I believe that the ST series could handle easily that and offer at least great sound - similar to the Amiga etc.
Each level has its own tune but SFX are..crap here (not digitized). Eitherway, the game is great and none will complain after a few minutes of gameplay :-)