So after a two week long hiatus that involved me getting angry at attempting to program other systems, I went back to the Intellivision version of GoSub. I wanted to solve the problem of using the keypad to fire. I didn't want that to happen. So I think I have figured it out after an hour and using the controller program. The lower left fire button's value is $60. If you add a direction, it's just the direction + $60. With that in mind, I plugged away on this and I think I have figured it out. See the GoSub INTV thread for more details. Let me know if it isn't working.