My take on undertoad:

Undertoad: StarBound

I'm still working on it. But I think wario and waluigi fit sans and papyrus more, and Mario and Luigi more so fit undyne and alphys.

Yo, long time no see, I'm still alive btw. So, I'm a bit late to being on here for the Undertale 10th anniversary... Sorry about that, I was just a bit homestuck.

Human... I Rember you're DISTRUSTS...

OH SHIT WHAT THE FUCK IS THAT THING-

oh... thats...

That's a new bullshit au I made called TRUE!Swaptale...

Egg.

UnderSwap Sans and Dust Sans!

Insanity sans...

on days like these...

kids like you...

should be learning how to...

DRAW!

TS!HardSwap Papyrus design

I NEED A COOL NAME FOR TS!HARDSWAP CROSSBONES.