Yup it's typical. Although it depends on the game really, how involved it is. However, alot of Aspies find much acheivement in video games. I was wondering what the game was your son won on the Gameboy.
There is a PC game called U.B. Funkeys. It comes with a hub, you plug in to the computer via a attached firewire. The idea, is there are little character figurines you can buy called Funkeys, and you plug the characters into the hub. It uses a magnet to hold the Funkey onto the base of the hub. Alot of the games are re-vamped versions of old video games, but they might seem new to your son. There also is a component to the game where you can earn items to decorate your Funkey's room.
There also is a mystery story behind the game, that is continuous which is really interesting. You also will need a internet connection for the game, since the game updates via internet downloads. There just recently was a download update, they opened a new portal for Funkeys they plan to release in the future. Also there is a surprise when you collect crystals, which you get randomly playing the games.
The only way to access certain games, is to have certain Funkeys. Hence how the company makes the money, lol. The Funkeys originall sold are cheap. There are rarer Funkeys, that can earn you more coins in games, and exclusive prizes. The best way to get those, is to look at Amazon.com. Alot of independent sellers, will sell the rare Funkeys through there. They might be more pricey though, since they're saving you the trouble of searching for the rare Funkeys in stores. There's also a limited amount of rare and very rare Funkeys released.
This all might seem like alot, but it really shows you how complex the game is, and for an affordable game at that. It might keep your son entertained long enough until you can buy him a new Nintendo game. Here are some websites you can also look at about U.B. Funkeys:
www.ubfunkeys.com (You need Flash/Shockwave for this site)
http://www.freewebs.com/ubfunkeys/funkeyforums.htm
The second link is a fan site. They have a board, where they discuss discoveries made in the game. The board is rarely updated though, but it's a good place to look if you are stuck. There also is someone who posted a GameFAQ at www.gamefaqs.com about the game. Eventually the official flash site, will have a bulliten board set up there, so you can get advice directly from the company.
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"Sprinkle, sprinkle, little bar, what I wonder is a cat" - Cheese from Foster's Home for Imaginary Friends