The only game I every played was the FPS on the 64. IIRC it felt like a reskinned Turok with crappy graphics. Even when I was 12 I remember it only being mediocre at best. The reason I know this is that I was never one to use cheats to increase my enjoyment of a game, but I remember finding and entering the God cheat within the first 3-4 hours of owning the game.
Current 3DS Wish List: 2-D Metroid, Final Fantasy Tactics A3, New Super Mario World, Dragon Quest XI