I finally managed to play this game on an app called Winlator, and it was magnificent! The graphics were amazing! The characters and backgrounds resembled the ones from the original game, so much so that they were indistinguishable from the ones from Undertale. The music was exactly the same as the soundtrack from Undertale as well, making it look and feel like I was playing a sequel of the game.
Everyone was in character, and that added to the feeling of playing a sequel rather than a fanmade game. Interactions with Flowey were also the same - as well as him acting as a guide, and telling you what to do to get a happy ending. Him manipulating you, and the game crashing. How nostalgic XD
I really loved the entire experience, even the bad ends had a purpose, and the actual ending more than made up for them.
Thank you for making this game, and for making me love Sans even more than I already do. This game is one that will stay with me for a LONG time, and one that I was lucky to experience.