i forgot what it is called but you hit him with something
Jump on its heads as they try to attack you.
You don't kill it you put it to sleep with the tune that the muse gives you in Apollo's temple.
the colors are: blue-green-yellow-blue-red-green.this will put cerberus to sleep so you can get the whisker.
Question: How do you put Cerberus to sleep in mythology island in Poptropica? Answer: It is pretty simple because all you have to do is get the pipe tune from the muse of music (you can find that inside a really musical looking sort of building) you have to get it because it is really important. You go to where Cerberus is then you play the pipe tune that you learned from the muse of music. you get out your pipe and you play it. That is how you get Cerberus to go to sleep in Poptropica
You don't need to sleep in counterfeit island :).
Get a reed pipe from the temple of Apollo and click on one of the statues there to learn a song. Then play the song to cerberus and click on him.
You have to get the song from the Muse of Music in the temple of Apollo.
you need the resting carbonate to make him fall to sleep
they don't
you jump on each head to put it to sleep
to ope the door where the big phoenix is it is blue blue green yellow yellow red blue green,but to put the cereburus to sleep it is blue green yellow blue red green.goodluck!
Cerberus is in the underworld past the River Styx in the realm of Hades. You will need a reed pipe (flute) and a song from the Temple of the Muses. Playing the short song will lull the monster dog to sleep.