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Proto:Sonic the Hedgehog Spinball (Genesis)

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This page details one or more prototype versions of Sonic the Hedgehog Spinball (Genesis).


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August 1993 Prototype
Found on a Chinese website. Despite being late in development, it is horrendously buggy.

Other Builds

September 17, 1993

Download.png Download Sonic Spinball (Genesis, Sept 17, 1993 Proto)
File: Sonic Spinball (Sept 17, 1993 Prototype).bin (1.00 MB) (info)

A late PAL build.

  • The introduction still lacks many sound effects.
  • The jingle for opening the sewer lids in Toxic Caves is shortened in this version.
  • Robotnik's ship during the destruction animation debris switches to the wrong palette partway through. This happens in the final as well, but is more noticeable here.

October 19, 1993

Download.png Download Sonic Spinball (Genesis, Broken Proto)
File: Sonic Spinball (Prototype Oct 19, 1993) (BROKEN).7z (312 KB) (info)

Found as an incomplete set of EEPROM chips with "19-10" written on the labels.