> Looking at puyo puyo, they use 11x11 tiles for their puzzle pieces
> once they have been placed on the game grid. I'm curious how they do
> this. I was thinking that each piece would actually have to be 16x16,
> but that would leave a 5 pixel transparent area around the graphic
> and the tiles wouldn't be flush next to each other. Anyone have any
> ideas how this is accomplished?

using sprites I guess... The GBA can display 128 sprites,
so you can do a *lot* with sprites.

Load the ROM in an emulator which enables you to switch BG layers/
sprites ON-OFF and you'll soon see how the programmers accomplished it.

Jan-Lieuwe