50+ Undertale Grey Monster Kid PNG. I don't think grey monster kid or goner's kid is related to w.d gaster but goner's kid probably came from the same place w.d gaster fall to his own experiment because goner's kid not even mention gaster name unlike his other. Get the soundtrack on steam or at.
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But the grey kid doesn't seem to be triggered by editing fun values, as far as i've seen researching on various sites. Goner kid can be seen only if fun value (in the undertale's file) is renamed into fun and is between 91 and 100. Fight or act your way through battles while dodging magic bullet attacks. Monster kid is a character from undertale.