Yeah, but the Sonic the Hedgehog Genesis port is poorly made. The sounds are far more inaccurate than the homebrew and gameplay has some errors and bugs.
It's pretty much a direct port of that version, albeit with some minor differences (Bridge zone act 2 doesn't auto scroll for example) and superior audio. The C64 is well known for its audio capabilities, courtesy of the SID chip. Note that this version requires a 256k RAM expansion to run.
Actually that's not clear, because I made a comparison video on both in my channel. You can watch it. At the end of the Mario game, they say thank you Sonic! Instead of mario
Fun fact: that one is called Sonic Genesis, this is a demo and a proof of concept to show that an actual good game can be made with proper physics unlike that crappy Sonic Genesis one we got for the GBA
Proba la versión mejorada de ssicosomatico ese juego de nes esta de lujo haceme caso y prova ese Sonic te adelanto el Sonic de ssicosomatico tiene el bonus en 3D