atari2600land picked up the work on his bBasic Tetris game for A2600.

Release notes:

Funny you should mention that. I’ve always wanted Edtris, but didn’t know how to go about getting it and didn’t want to go the Hozer route. Borrowing some notes from the title screen of this unreleased game, I’ve made a little title screen ditty. Also, if you got 60 lines, the color didn’t change back to green. I’ve fixed this. The color scheme is as follows:
0-9 green, 10-19 yellow, 20-29 orange, 30-39 red, 40-49 purple, 50-59 blue, and it loops back to green at 60 lines.

http://www.atariage.com/forums/index.php?showtopic=135837