An intelligent life-form ("HeadBlockhead") wishes to waste the brainpower of humans, to stupefy them in preparation for alien invasion.
To do this, the life-form has designed a mobile game.
The game takes place in abstract space. The player controls the intelligence cube. On each face of the cube there is an absorption pad of a specific colour.
The intelligence cube attracts other cubes, but only absorbs intelligence when the colours on the faces of the cubes match.
The player can rotate the cube to match the colours.
A counter records the amount of human intelligence wasted on matching the colours, rewarding the human.