When XSCREEN is used, sprite and background character resources are divided up. The top screen gets layers 0-1 and the touch screen gets layers 2-3. To get the top screen to use layers 0-3, you need to specify it when you call XSCREEN.
*XSCREEN Screen mode [# of sprites for top screen, # of BG layers for top screen]*
So, for example XSCREEN 2, 256, 4.
Keep in mind that touch screen resources
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