I happen to be browsing through my Favorites folder in my internet browser, and I came across this site:
The site is created by a company called Hipopotam Studios. It features 26 games recreated in Flash and controlled by your keyboard. Some of the games listed are Donkey Kong, Parachute, Zelda, and The Terminator.
I remember when I was a kid, I had a Handheld Football and Handheld Baseball game, and then when I was in junior high I had an Altered Beast Game Watch by Tiger Electronics. Something about playing such a simple style game makes me wish we still had those games around now. Until I can find playable Tiger Electronic games or videogame watches again, I have this site. Definitely worth checking out!