W.D Gaster in Deltarune
Built it all from an empty room
Mike the Cat, yeah that is Gaster
Even the titan that is Gaster
In the bunker sits that Gaster
Entry 17's own master
Kris is Gaster
Susie Gaster
Noelle Gaster
All are Gaster
The Knight is an amalgamate made by Gaster intricate
Gaster is actually Green
Dad of Sans and Paps I mean
He fell into his own machine
Split to atoms quite a scene
He's a legend immune to ruin
So he created Deltarune
Dess is missing so is Gaster
Dark world also surely Gaster
And the vessel that we loot
Well that is also Gasters doom
And actually damn Delterune that is also fucking Gaster
Change six letters
Do it faster
And the result is
(In a corrupted voice)
Gaster