Well this is certainly an easy version of the sans fight.
The only bug I encountered is according to the games page (allegedly) not a mistake lol.
I never played undertale so I couldn't tell you how great this is from that perspective, but it seems like it meets its goal of being an easier sans fight.
Oh and the devlog link appears to not be working, so I couldn't tell you if certain things have improved or not.
I honestly don't have much feedback since the game is pretty straightforward imo. Nice work!