Quite possibly the best gba game ever made.
Basically, this is sort of like Mario Party without the board, only waaaay faster, funnier, and funner! The game is pretty simple and easy at first, so anyone can pick up and play. But after a while, you can see that this game can be very easy or very challenging! You may even start bragging to people, "My high score is bigger than yours!" This game is amazingly simple and amazingly FUN! There are over 200 minigames, called Microgames here because they are short. You have to beat as many as possible and the controls are D-Pad move and A do stuff. After you beat a certian number of games, a boss game appears and after the boss end the process starts all over again. The games range from 5 second segments of classic NES games to Picking your nose. These game are also designed to make you LOL.
Since this started a series, there are lots of new characters that you will grow to love as much or even more that you love Wario himself. Another nice thing is that you can pick up this game, play it for 5 minutes, and put it away, a great thing for a portable, or you can play this game for 6 hours straight, another must for portables.
There are also lots of extra unlockables to get, from an entire port of Dr. Mario to Single GBA multiplayer games to extended microgames. There is no end to this game. Once I got this game and put it in my Gameboy, it did not leave it until about 4-5 months afterwords. That's how fun this game is.
The graphics may be a little wierd at once, but you really won't mind one you get used to it, especially since the game moves so fast. The sound is very nice, it fits the game and it is also very FUNNY!
In conclusion, this is an incredible game that can be reccommended to anyone, it's a real steal at about $10-15 eBay. And it will keep you entertained for years to come. The start of an awesome series.