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Hyperblast, how does it expand its playfield to fullscreen (ish)

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Nothing special going on here - only standard width DMA and 232 of 240 scanlines for the display.


What hasn't been done yet is using the scanline 240 exploit to get a score display going outside the normal screen using the PMs, though it'd be next to useless on probably anything except PAL TV with the right Vheight setting and wouldn't work on most emuators.

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