the cerberus is a 3 headed dog on mythology island on poptropica
You play a song on a flute that puts Cerberus to sleep.
In the Underworld after crossing the river of dead.
Play the song one of the Muses gave you on your reed pipe. This will make Cerberus fall asleep and you can get its whiskers.
You play him the song you learned earlier on the reed pipe.
You play the tune once.
Play the tune the lady with the reed pipe gave you.
Use it to get into the Minotaur's lair as well as to put Cerberus to sleep.
the colors are: blue-green-yellow-blue-red-green.this will put cerberus to sleep so you can get the whisker.
you get a flute from Apollos museum and click the music statue and play it for Cerberus
Cerberus is in the underworld. You get to him by going on the boat ride across the river. But you have to watch out because if you fall in you have to start all over again.
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.
blue, green, yellow, blue, red, green