Algodoo

Hi there,this is among us riddle and the riddle
is who is impostor?,impostor disguise as yellow
so becareful,if you kill the wrong yellow,impostor wins
and if you kill the impostor,crewmate wins.

i made this because im bored
So enjoy (by the way if you play among us,you remember
when you are shapeshifter right?,if yes then maybe you remember the timer
or C???d??? and this is hint)