Tetris would be a good game to start with. However, you will need much better resolution than 4x20. You might try to program some device that already has a higher resolution display: perhaps a Game-boy or Palm Pilot. However, you need a development environment for these devices. You can program the Palm Pilot using Linux + free tools. I'm not so sure what is needed for the Game boy.

I wrote a few very simple arcade games in Z-80 assembler for the Exidy Sorcerer. It had an 24x80 character screen, and the character bitmap was definable for some of the characters. This came in handy to make little animations (like flapping bats.) One of my games I called Bat-Chase. It randomly placed fences and fires and bats. It was a spin on the old robot-chase game where the robots moved one cell closer to your piece every .n seconds. You had to run around and try to get the flapping bats to get electrified in a fence or burn up in a fire. This was back in the days of using cassette tapes instead of floppies.

<>< Lance.

melt brink wrote:
I think for a start il try tetris on a 4x20 LCD using the 8051 :)