This is by far the most difficult of all the Metal Gear games.  Playing through on my own, I was never able to get past the first major boss (a bunch of guys who get into a football stance and rush you).  I'm not proud to admit that I could only get past this game with the Game Genie.  It is one of the few games that I had to cheat to win.  This is also the red-headed step child of the Metal Gear series.  When Metal Gear Solid was released on the PSX, it referred to the game with the Zanzibar mission as Metal Gear 2: Solid Snake.  This confused me because Snake's Revenge for the NES was the Zanzibar mission.  Apparently, there is an unreleased (in America) Metal Gear 2, but we got Snake's Revenge.  They aren't the same game, but at the same time.....the mission is the same.  I don't fully understand this.
Much like in the first Metal Gear, Solid Snake begins in a jungle and must infiltrate a base.  The play control is similar to the first Metal Gear game, but for some reason it isn't as fun.  The difficulty was ramped up very early in the game, and as it seems that the makers of Metal Gear have almost disavowed the existence of this game....this is a very forgettable game.  Not very good, but if you must play every Metal Gear game in existence, don't forget about this one.
This is by far the most difficult of all the Metal Gear games. Playing through on my own, I was never able to get past the first major boss (a bunch of guys who get into a football stance and rush you). I'm not proud to admit that I could only get past this game with the Game Genie. It is one of the few games that I had to cheat to win. This is also the red-headed step child of the Metal Gear series. When Metal Gear Solid was released on the PSX, it referred to the game with the Zanzibar mission as Metal Gear 2: Solid Snake. This confused me because Snake's Revenge for the NES was the Zanzibar mission. Apparently, there is an unreleased (in America) Metal Gear 2, but we got Snake's Revenge. They aren't the same game, but at the same time.... . the mission is the same. I don't fully understand this. Much like in the first Metal Gear, Solid Snake begins in a jungle and must infiltrate a base. The play control is similar to the first Metal Gear game, but for some reason it isn't as fun. The difficulty was ramped up very early in the game, and as it seems that the makers of Metal Gear have almost disavowed the existence of this game.... this is a very forgettable game. Not very good, but if you must play every Metal Gear game in existence, don't forget about this one.