1. I think buttons are really big and when reading the whole bottom screen occupies a lot of the screen estate. So what I did was to simply change height and width using a hex editor and use L, R, U, and D instead!
I can upload this mp3 file.
mr.wolf
2.
Question: What can be done so that we won't have this issue even with partial refresh on (for both yifanlu and mr.wolf's solutions)?