That's my opinion on it. [EDIT] i have changed my mind. I now consider SwapDust to be a valid name, because i found some Undertale creators who use a different naming system. This naming system consists of putting the base AU first. This means that Dusttale in Underswap would be labelled "SwapDust", not "DustSwap". However, Dusttale but the characters swap roles like in Underswap, so Papyrus is the killer, would be "DustSwap".