Just to clarify a few things that are minor errors... M1A1 is a complete conversion of the original Marathon to the Aleph One platform. They are exactly the same except for the beginning (when you start out in the cave), which is a tribute to Pathways into Darkness. I STRONGLY suggest not using the spoiler guide. These games are worth every difficult hallway filled with Pfhor and ledge you just can't seem to get to. These are not just games, these are legends which all must conquer to become true gamers. You have no sight, little health, no fancy animations or graphics or anything. This is pure hardcore gaming. Is the Marathon trilogy better than Halo? Helllllll yes. No competition. The Marathon Trilogy is the best series of games I have ever played - based on the story alone. And mind you, I have played a LOT of games. [Edited on 6/30/2004 10:58:51 PM]