Using my emulator, if I hold START and press RESET, the title screen (for a frame or two) appears quite different.
Seems to be using the level 1 in-gameplay palette rather than the title screen palette.
Happens if you have started playing the game, then reset, then frame advance slowly.
Game draws the tilemap and enables rendering by frame 7, then updates the palette on frame 8, then adds in sprites on frame 9. Nothing really major going on here. It's drawing the tilemap with an uninitialized palette for 1 frame. From power-on on most emulators, that will be a gray-filled 00 palette, unless you've played the game and reset.
Happens if you have started playing the game, then reset, then frame advance slowly.
Game draws the tilemap and enables rendering by frame 7, then updates the palette on frame 8, then adds in sprites on frame 9. Nothing really major going on here. It's drawing the tilemap with an uninitialized palette for 1 frame. From power-on on most emulators, that will be a gray-filled 00 palette, unless you've played the game and reset.
Did you notice the copyright symbol instead of a dot? 
Yup.
Dwedit wrote:
From power-on on most emulators, that will be a gray-filled 00 palette, unless you've played the game and reset.
Yup.
Looks like the dot and the copyright symbol are the same tile, just drawn with a different palette.
And of course, it looks really really silly.
And of course, it looks really really silly.