A Shapes patch and an MML script that allows Return To Marathon to be played with Aleph One. You still need the full Return to Marathon download - this simply patches the shapes file to get around a glitch in the Infinity version (the glitch doesn't affect the game under Infinity, but makes areas unplayable under A1) and replaces the patched RtM application. A fantastic example of how Fux! can be replaced with MML.