I've added high score, regular score, and timer onto Explosive Diarrhea. So now the game looks like this:

The bombs get laid out differently than in the 2600 version, though. In the 2600 version, there's one bomb for every row. In the Odyssey2 version, it's one bomb for every column. I don't know how or why I did it that way. That's just the way it came out. And the game works well except for the grid flashing occasionally. In 5 rounds, I've only seen it do it once. Each round lasts 60 seconds or so. Once the timer gets to 60 the game ends. I just got Walls for the Odyssey 2 in the mail today. I like that it has Voice support, it really makes the game more enjoyable. 2600 Connection did a nice job releasing Walls. But now I'm all Odyssey2-ed out. So instead of programming for it, I think I'll just play it, that is, until my ActionMax console with three games comes in the mail next week sometime.