The Group will donate US$5 to Plastic Oceans International for every score that's shared in the game.
Global marketing communications network MullenLowe Group has created 'Coral Grief' for World Octopus Day in a bid to help save the world's oceans and the wildlife within them.
The group, with its iconic octopus logo, has created a game that puts players' challenger mentality to the test to remove as much plastic as they can from the sea.
Players are encouraged to share their high score using the social media icons at the end of the game.
For every score that's shared, MullenLowe Group will donate US$5 to Plastic Oceans International so players can make a real contribution to saving the world's oceans.
Coral Greef launched online on October 8.