First of all it would be Shadow killing Sonic, but if Sonic did even manage to kill him (we all kno hes too weak! And that Shadow cant die!) then i would totally avenge Shadow's death. oder even try to stop him from dying.
is shadow got killed Von sonic (p.s sonic is gay) i would turn into a left 4 dead witch and rip out sonics herz feed it to eggman and spit on sonics grave...................................................................then i would kill eggman too=)
i would not kill sonic i wpuld say sonic i i am kid of happy Du killed shadow and amy will say.... amy:SHADOW I LOVED Du YOUR DEAD NOW NO!!!! alica:ah he he sonic Du killd shadow it was funny i was smileing i Liebe it and you!!!