This was something I originally posted on the Sonic Hacking Contest Discord, but am now posting here in the hopes that further research can be...
The Sonic 3 prototype is rather well known for having many abilities that didn't make it into the final; of course, the most infamous of these is...
In June 1990, Sonic the Hedgehog debuted at the ‘90 Tokyo Toy Show, with a radically different appearance to what it became at its release a year...
https://www.sega-dreamcast-info-games-preservation.com/en/space-channel-5-dreamcast-alpha-prototype-iso
Apparently the build is from six months before JP release. https://archive.org/details/test-00000-xrd-6640.-7z
https://www.sega-dreamcast-info-games-preservation.com/en/vectorman-playstation-2-unreleased-first-look-iso Vectorman (PlayStation 2)
Okay, here we go... The development of Sonic 2 was big. Very big. The game was different. The title screen was also different. There's a fox...
A development build of Sonic Boom: Rise of Lyric, dated July 18, 2014, has been dumped on the Internet Archive. Definitely worth its own thread....
I've been trying to hunt down a batch of pre-release CG cutscenes from Sonic Heroes for a while now. I recall these being either leaked or...
[IMG] Sonic 3C Delta is a hack of Sonic The Hedgehog 3 (& Knuckles). It is a compilation of early/unused content for Sonic The Hedgehog 3,...
For those who don't understand the thread title, this is about all the strange oddities that the sound drive in the Sonic 1 prototype has; this...
The Sonic 3C 0408 prototype appears to have data from older S3C builds leftover in the padding area. I haven't searched through this very well as...
(Reposted from The Supreme Topic of 'Other' Knowledge) Not sure if this deserves its own topic or not, but recently some interesting things...
Hey folks, I uploaded this old Japanese Dreamcast promo video from 1998 through my Patreon (which centers around providing better digitized rips...
[MEDIA] I have a trip to make, so I'll make this short: you may have seen this footage before from the one-off VHS magazine tape Fuse, but an...
I've been in a Sonic mood lately. So I'm kicking off July for myself by uploading an old short Japanese preview of Sonic R for all Sonic fans --...
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