Lunar Lander source...

Hi, Does anybody have a Z80 or 8080 source listing for a good raster graphic implementation of Lunar Lander? I'm going to be demoing my Cromemco loaded IMSAI at VCF East in September and while spacewar and tank war are fun, they require two players. I'd like a single player, relatively short (time wise) game and I think Lander is just what I'm after. Looking at my schedule, I'm not going to have time to write one from scratch but I should be able to port a good implementation to the Dazzler/D+7A. Tetris would be a second choice but a good player can tie up a tetris game for a long time. On a related note, does anybody have the source for Crush, Crumble and Chomp? Clearly, not for the show but I really enjoyed that game, back in the day. I had the PC BASIC source and I ported it to the Sanyo MBC550. I gave the Sanyo away before I started collecting and, as far as I can tell, CCC went with it. Thanks, Bill Sudbrink