I've been busy as hell trying to fix the Button Test's bug, and I've finally fixed it. You can now press all the buttons at once. This is a HUGE win!
I also overhauled the startup sequence, changed the title screen a bit, and turned the useless and boring "Test Grid" into a colorful rainbow maze for testing the Dpad. It's called "Dpad Maze". (Real original, eh?) I know the name is stupid, but I'm limited on character length in the menu. I also brightened up the menu colors a tiny bit, as some of them were a bit dark. The Sound Test menu and the Button Test menu were most notably dark. The Pixel Repair menu got a redesign too, with a new logo for stuck pixels, and a soft light gray background.
And as always, it can be downloaded HERE completely free of charge.