Sonic Spinball (Sep 17, 1993 prototype)

Sonic Spinball (Sep 17, 1993 prototype)
Build date Sep 17, 1993 Build name 17/9 Dump status Released Dumped by drx Released by drx File release date December 30, 2020 Origin Loose EPROMs Labels Sonic Spinball # MD 17/9 4m Dump method True-USB PRO GQ-4X Ownership drx (2020-Present) Game Sonic Spinball System Sega Mega Drive Genre Pinball Final build EU Oct 7, 1993 US Sep 22, 1993 Release date JP Dec 10, 1993 US Nov 23, 1993 EU Nov 15, 1993

Download Sonic Spinball (Sep 17, 1993 prototype) (info, raw dump)

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A late prototype of Sonic Spinball for the Sega Mega Drive.

Notes

The Cutting Room Floor research

This prototype has a research article on TCRF.

• PAL prototype.
• This prototype comes after the well known prototype scene release from PREMIERE.
• This build is actually a complete dump of another build that was featured on an incomplete set of EPROMs.
• While the date written on the EPROMs predates the final US build by about five days, it's possible that the date written on the EPROM is a burn date rather than an actual build date. As such, this build could be much older than the date specified on the EPROM.
• Changes:
  • No "Rising Jackpot" message after the score tally following multiball/bonus stage completion.
  • Alternate music used in the following locations:
    • All emeralds collected sequence
    • Rexxon escape sequence
    • Multiball/bonus stage exit
    • Level completed sequence
    • Ending sequence
• Glitches:
  • In Toxic Caves, it is possible to glitch through the entrance barrier in the upper-right board.
  • Robotnik's Ship post-defeat destruction animation has an issue where the wreckage graphics switch to the wrong palette partway through the sequence. This happens only momentarily in the final, but is much more prominent in this proto.

Screenshots

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Files

Merged:

File	Type	Date	Size	SHA-1
Sonic Spinball (Sep 17, 1993 prototype).md	File	2020-01-11 05:29:37	1 MB	1b17e659f8a18656c36b8e26cc997c0d8312761b

Raw:

File	Type	Date	Size	SHA-1
merged.bin	File	2020-01-11 05:29:37	1 MB	1b17e659f8a18656c36b8e26cc997c0d8312761b
sonic spinball 0 md 17-9 - 1.bin	File	2020-01-11 05:18:37	512 KB	d54f89dea19a1489f0297405f5a0d245f55e9e86
sonic spinball 0 md 17-9 - 2.bin	File	2020-01-11 05:21:22	512 KB	d54f89dea19a1489f0297405f5a0d245f55e9e86
sonic spinball 0 md 17-9 - 3.bin	File	2020-01-11 05:22:42	512 KB	d54f89dea19a1489f0297405f5a0d245f55e9e86
sonic spinball 1 md 17-9 - 1.bin	File	2020-01-11 05:24:32	512 KB	679af842ce2ef4dde2ec669b1f6ce97f64bfa43d
sonic spinball 1 md 17-9 - 2.bin	File	2020-01-11 05:27:04	512 KB	679af842ce2ef4dde2ec669b1f6ce97f64bfa43d
sonic spinball 1 md 17-9 - 3.bin	File	2020-01-11 05:28:35	512 KB	679af842ce2ef4dde2ec669b1f6ce97f64bfa43d

Header

00000100 53 45 47 41 20 47 45 4e 45 53 49 53 20 20 20 20 SEGA GENESIS 00000110 28 43 29 53 45 47 41 20 31 39 39 33 2e 53 45 50 (C)SEGA 1993.SEP 00000120 53 6f 6e 69 63 20 53 70 69 6e 62 61 6c 6c 20 20 Sonic Spinball 00000130 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000150 53 6f 6e 69 63 20 53 70 69 6e 62 61 6c 6c 20 20 Sonic Spinball 00000160 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000170 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00000180 47 4d 20 4d 4b 2d 31 35 33 37 20 2d 30 30 88 dd GM MK-1537 -00.. 00000190 4a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 J 000001a0 00 00 00 00 00 0f ff ff 00 ff 00 00 00 ff ff ff ................ 000001b0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001c0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001d0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001e0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 000001f0 45 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 E

Origin

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  EPROMs.

Acknowledgements

• Special thanks to The Cutting Room Floor for helping us with this release!
• Special thanks to Sazpaimon for playing and recording the footage and screenshots.
• Special thanks to Kat for writing down the differences in comparison to the final release!

See also

• The Cutting Room Floor
• Original announcement article.