Protect the Earth from the inconceivable watermelon invaders from the outer space!
Use the Power of Four - four adamant protectors of the human race - Mr. Green the Wise, Mr. Blue the Encouraged, Mr. Yellow the Reckless and Ms. Pink the Enchanting. Move them to annihilate the watermelon assaulters of the same color, demolishing from the sky.
Become the most effective and staunch sentinel of our world!