You don't kill him (like you do to Hydra) -- you just put him to sleep.
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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. (the song is blue-green-yellow-blue-red-green)
When you enter the realm of Hades from his temple, you will ride the River Styx to Hades domain. When you meet Cerberus, play the song (blue-green-yellow-blue-red-green) and you can take a whisker when he falls asleep.
the cerberus is a 3 headed dog on mythology island on poptropica
To get to Cerberus you have to cross the river Styx.
To get Cerberus whiskey in Poptropica's Mythology Island, you need to first obtain a bottle from the Underworld. Head to the Underworld and speak to Hades, who will ask you to retrieve a lost item for him. After finding and returning the item, you'll be rewarded with the Cerberus whiskey, which you can then use to calm Cerberus in the game.
In Mythology Island, to soothe Cerberus, you need to play the notes C, E, G, E, C on the harp. This sequence calms the three-headed dog, allowing you to proceed with your quest. Make sure to play the notes in the correct order to successfully interact with Cerberus.
blue,green,yellow,blue,red,green.
Collect the rest of the 5 sacred items and return them to the Tree of Immortality.
the colors are: blue-green-yellow-blue-red-green.this will put cerberus to sleep so you can get the whisker.
Cerberus is apart of the Greek mythology.
To open the door, when at the minator, jump up and find a pomegranite tree. Jump so that you hit the pomegranites and you offer them to 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.
Blue, green, yellow, blue, red, green.
To get the whisker from cerberus on mythology, you have to play the pipe tune that you get from euterpre, the master of music, in the grove of temples. He will fall asleep so you can get it. This is for the mythology island .