Board Thread:Fun and Games/@comment-25958552-20160730164841/@comment-32284037-20170614002654

i would have an another theory

Gaster disapear or turned in a ghost because of is last experiment, and he tries to come back or communicate by is followers, (that would be why one of them say that gaster can still hear them) and Sans would tries to fix the machine that turns gaster into a ghost to tries to bring him back ?