Possible Gameplay Spoilers of Puzzles Maybee
Ive been playing through the Metal Gear series, currently beat Metal Gear, Metal Gear 2, and Metal Gear Solid, and so far the story is so amazing, the games are really creative with their mechanics and how you are to go about solving puzzles, they use many aspects to try and make you interact with something in real life to continue to the game, such as looking in your game manual for a frequency to call, and having to switch ports to damage a boss, and it is just so good.
Continuing to Metal Gear Solid 2 soon (dont spoil me please).