Wii Sports is an excellent bundle of fun sports games, with surprisingly more depth then you'd come to expect.
In Wii Sports, you are free to use pre-made characters, which wouldn't save any records, or create a 'Mii'. The Mii is a cute little character that you can customize in a lot of ways. You can create one that looks like yourself, your friends, celebrities or simply a Mii that looks amazingly funny in his or her own way. Once you've created a Mii, you are free to use it in Wii Sports. It will then save all of your records and keep track of how good you are, in a points system. The better you do, the more points you gain after each game. For example, if you bowl extremely well, and take down 250 pins, you'd probably gain a lot more then if you took down 150. These points are easy to gain at first, but once you've got a lot of them, it'll get a lot harder, and if you don't play too well, you might as well loose some points instead of gaining some.
If you're good enough to gain 1.000 points, then you will achieve Pro status. It doesn't change much, except for the fact that you can call yourself a Pro at that game. (And the ball in bowling will start glittering a bit.)
The graphics are very simple, yet they seem quite colorful and actually decent, for a Next-Gen console. However, Nintendo did not wish to focus on HD and superior graphics with the Wii, and therefor it doesn't look as good detail-wise as other consoles, but it certainly looks brilliant for a Wii game. (And you simply cannot resist those cute Mii's playings sports, huh?)
Sadly, the sound doesn't hold up as well as the graphics. Sure, you've got some nice, relaxing and good music, but hardly any varerity in the music. The Mii's says absolutely nothing, and the only voices you'll hear is when you win or loose.
Nintendo thought of a nice detail, by adding a speaker to the controller itself, but sadly it simply sounds horrible, and you'll most likely end up muting the speaker on the controller. You'll miss a few sounds that won't come out of the speakers of the TV, but you'll be able to live with that, as long as you won't hear those poor quality sounds from the speaker of the controller. Good idea, but poor result.
Wii Sports contains five different sports, that all requires you to use the new controller in a different way. They all vary in how fun they are, how difficult they are and how much replay value they have.
The most popular of them all would have to be Bowling. It's quite easy to get into, although it will take you some time to understand and truly master spin control and speed, as well as to learn where you need to hit, if you wish to knock down all of the pins. You hold up your Wii Remote to prepare, then you hold down your B button and swing back the Wii Remote, then swing it forward and release the B button to let the ball fly down the lane. The controls are amazingly easy to understand, even for people who have never really touched games before will easily know what to do, and enjoy playing Wii Sports. (I know this from my own experience by letting friends, not being gamers, try playing Wii Sports.)
The controls hardly need any explanation on 'How to do it'. If you know how to swing a bat, how to play Tennis, how to get a hole-in-one, how to punch and how to play bowling, then you'll easily understand Wii Sports, and the controls would be absolutely no problem for you.
Baseball is, in my very own opinion, the hardest game. I never seem to be able to hit those home runs, and I'm not the best pitcher out there at all.
You need to give Tennis some time though. I was hardly able to hit it correctly at first, but after a while, then it became easier for me. But, after a while, then it also became my favorite sport in Wii Sports, and I absolutely love Tennis, although it can be bit frustrating sometimes, if you're having a hard time against two tough opponents.
Boxing is more like 'Hit as much as you can, as fast as you can'. It'll help you take down your opponents first, but the difficulty increases along with your points, and you'll have to dodge their hits, as they dodge yours, and counterattack them at every given opportunity.
Golf is the last of the Sports, and it seems somewhat unpolished. While it is fun and entertaining to play, it still seems very difficult to know how much you need to swing the controller, in order to hit the right spot. You'll only know how much power you gave your shot after you've sent the ball flying. None the less, it's entertaining for some people, especially once you get the hang of it, and begin to understand how much power would be enough, and how much would be a bit too much.
But, there are more to Wii Sports then simply this. There are three minigames for each sport, which proves to be far more challenging then you'd think. In bowling, you can try to master spin control. In boxing, you can try to dodge, as your trainer will throw balls at you. In golf, you can try to hit the target as good as you can. In Tennis, you'll find out how many balls you can return, before you send one over the line. And last but not least, in baseball you may want to find out, how many Homeruns you can hit. These are just one for each sport, but there are two more for each sport.
You can play 2-4 players in each of the games, and in Bowling and Golf, you can even play multiplayer with simply one controller. Sadly, there are no online available for Wii Sports, which would've added a lot to the replay value. While the game does have a lot of more depth then you'd expect, then the fun slowly wears off, but Wii Sports will always be a funny game to pick up and play at any given time.