Undertale - VS Gaster

People are recently discovering pockets of intentional "glitch code", hidden rooms and removed characters. Also, the majority of the community has already digested the main portion of Undertale content so the last puzzle to be solved is the puzzle of WD Gaster; Assuming that it is a puzzle to be solved at all.

I belive the stuff Sans uses to fire lasers is identified in the code as "Gaster blaster" cannons.