Amazing stuff here! I still remember some of this stuff's original release through Sonic Database like it was yesterday, but it's great to see even more has been unearthed after all this time! Of particular note - I love that the assets appear to contain actual Digitizer art for "Bee"! it's always looked so different to "Wasp" (aka Buzzer in the final) to me that I've long wondered why we represent it on the wiki with the early "Wasp" Digitizer art. (Also, holy crap - that's a LOT of extra Digitizer art for "Wasp" among the sketchy sprites. Combined with the existing pencil/paper designs, it seems like we now have a really clear picture of the development of that particular enemy...!) Also, it's nice to finally have some form of colour reference for Bubbler/Mother Bubbler/Ball etc - even though this may have changed had they made it further into development, it's nice to finally see what the artist's intention was. Of course, the absolute star of the show is definitely the unexpected surprise of assets from the original Sonic the Hedgehog...! Sounds likely these were provided as reference to the Sonic 2 artists - wonder if they did the same with level art too? If so, that may finally explain how Green Hill assets appeared in Brenda Ross' desert stage artwork...! The proto Ball Hog is interesting as it's not only our first clear look at it, but it's also a later revision than what we've previously seen in the existing prototype footage - that version hopped from foot to foot on the spit when idle, whereas this one jumps in place similar to the final Ball Hog. The colours used are also interesting - as well as the differing blues, some of the enemies seem to have been drawn in weird blends of colours, such as four shades of blue along with three yellow shades. Splats even has three green shades, which makes it appear very different to how it does using the final game's palettes. Of particular note is Burrobot - the use of yellow rather than red really makes it look like it's wearing a more traditional 'cobstruction worker' getup. Perhaps it should have been assigned the second palette in the final game so this detail wouldn't be lost? Anyway, amazing stuff - kudos to all involved in ripping and preserving it~!