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If you'd like to support our preservation efforts (and this wasn't cheap), please consider donating or supporting us on Patreon. Thank you!
Proto:Sonic Spinball (Genesis)
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This page details one or more prototype versions of Sonic Spinball (Genesis).
Sub-Page
 | August 1993 Prototype Found on a Chinese website. Despite being late in development, it is horrendously buggy. |
Other Builds
September 17, 1993
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Download Sonic Spinball (Genesis, Sept 17, 1993 Proto)
File: Sonic Spinball (Sept 17, 1993 Prototype).bin (1.00 MB) (info)
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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
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Download Sonic Spinball (Genesis, Broken Proto)
File: Sonic Spinball (Prototype Oct 19, 1993) (BROKEN).7z (312 KB) (info)
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Found as an incomplete set of EEPROM chips with "19-10" written on the labels.
