What if Billy knows when other abominations happen and just power walked out of where ever he’s been chilling and all the sudden like, yoinked Kirby’s laptop to hack into the Mimic’s whole deal real quick.

Because you end a command to a commuter with “Run”. 

That would also mean that Billy just busted open the command lines for this thing and dropped in a quickly written program possibly titled “DuckPizza”

Bonus points if Billy is fully capable of writing in english after a while, and just really fucking likes using the two first words he learned as a self in-joke. 

DOUBLE bonus points if it’s Billy in the future working with Kirby to hack Ned out and it’s become an in joke between himself and the pine guard, or with just Kirby.