Basically, I added Clock Work Zone Act 3 to be playable, with the entire layout being made myself. The layout tends to feel unfinished by purpose to make it feel like it was an unused level. To access the Act 3 of it, you need to activate the level select the same way in the proto and select Clock Work Zone Act 3. Credit to Beta Filter for his Sonic 1 Prototype Disassembly Screenshots:
HOOOOOOOOOOLD UP. What's with this in Sparkling 1? There's enemies with broken art, and messed up object placement in other acts with Green Hill being the only zone unbroken. I just wanna know, what happened to result in sh!t like this?