OK, I have made some progress on my Ants! game thanks to the Videopac forums. This version is for the Odyssey^2, and if or when it ever gets completely finished, I'd like to sell it somehow. So, the score is perfect, the ant collision detection is working OK, and the walls are working (instead of the walls themselves, I limited it to the position the little green guy is in to make sure he doesn't even touch the walls.) But there's one problem: I want to know what I should do next. I'd like to limit this to 3k. I don't know how much space I have left. So, should I add in an enemy that chases you, or a timer, both perhaps? Anyway, you can see what I have at the official Ants! for the Odyssey 2 homepage. There you can download a ROM for an Odyssey 2 emulator as well as the source code so people like me who are just beginning assembly can look at it and hopefully find it useful. If this game seems familiar, it's because it was one of my first bB games, which eventually turned into the Alien Greed series. Here's a screenshot of the game so far in action.