The information offered by Amazon isn't that clear on this bundle, so I'll explain what this bundle is.It's basically a N64 with Pokemen Stadium. Includes:
1. A complete N64 GamingSystem
2. Two Controllers (Most consoles come with 1, second will cost extra)
3. Pokemon Stadium, the game.
4. The Official Nintendo Players Guide: Pokemon Stadium
5. A pokemon poster for your wall.
Now I would like to remind you that just a N64 with 2 controllers is going to cost you the same as this bundle. So basically you're getting a N64 and Game/Game accessories at the same price as only a N64.
Pokemon Stadium is very much like a pokemen battle on a gameboy. Except that it's in a stunning 3d envirement, with all the effects in realistic rendering. It makes a great addition to any pokemon fans collection. Overall however, it's only a mediocre game.
But since you're getting it for free, I think it's a good deal isn't it? Especially since there are people who think it's the best, and buying it stand-alone will cost $40.
Bottom Line - If you're getting a N64, this is the best bundle you can get.