Neglected Classic Games That Deserve Remakes?

Thanks to GameSpot for its feature discussing neglected videogames that nonetheless deserve remakes. The "games that may have been forgotten but were at least pretty well known in their day" include Roadwar 2000 ("[an] innovative adventure set in the ruins of American civilization"), Biomotor Unitron ("an exceptional game... [that] had the poor luck of being released on the profoundly underappreciated NeoGeo Pocket Color in 1999"), and Xenophobe ("a lighthearted and memorable arcade game... [that] takes itself less seriously than the average alien shoot-'em-up.")