TGH just killed Neutral
its not dead he didn't get 5 cycle and asgore could have been a turn faster Kappa
Fastest possible would be hard to calculate; You could potentially find the best possible time for each room and boss in the game and add them together, but that would be fairly mind-numbing and take forever. It'd be nice to know a general estimate, but I haven't the skills or patience to cobble one together.
And that doesn't even factor in possible skips in the game that are undiscovered as-of-yet.
Recent runs