Or it doesn't. Who knows, maybe we can get a freakout page someday, but I forgot to do it today, and I don't want to work extra hard holiday. So, instead of freaking out about sister stuff conflicting with Toby Fox stuff, you instead just look at things from around the floor you're currently on.
Your house is very large. I've said this before, but I want to reiterate that many rooms in your house have never received the presence of you. Such is the case with the entirety of the laboratory. You only heard about the stuff that went on down here from your sis, who said a few things about it.
This table looks interesting, you think to yourself. It seems to have a large minigun and what appears to be a spear launcher. I don't think I've mentioned this before, but before you had guns as your specibus, you were an excellent wielder of spears. Of course, looking back, it was mostly for the purpose of showing off to Undyne, who you had a crush on, but it evolved from there to an appreciation for all things polarmic.
Your friend, Mew Mew, even learned the spear and other things from you. You two used to have blunt sticks to practice on each other. You won a few times, then she a few, then you a few, and back and forth until you stopped caring about the spear and moved onto guns. She still uses spears and whatnot today, and from time to time, you do continue to practice using blunt sticks, but it is way more infrequent than before.
The Minigun seems like it could make a cool weapon if you combined it with a gun that you could wield.