So it took 6 hours, but I finally got x and o input working. Use the left controller for x and the right one for o. Next up is win checking. I have about 300 bytes left to do that in. I'll do that later sometime.

It works just like I intended it to: pressing up makes a letter in the upper middle, etc. Diagonals work well too. Press ACTION to put a letter in the center part. Now I will test it on a real Odyssey 2.

I just took my pills this morning. One tried to escape. I could feel the capsule going around my mouth, so I drank some more water.