The Adventures of Tintin The Secret of the Unicorn - The Game

To unlock this cheevo you must complete level 11 in tintin and haddock mode.

The level is simple enough, just run through until you come across the level boss which is the head of thompson.

Run along each of the 3 levels activating both switches while avoiding the giant head,
Once all 6 switches are done the 3 levels disapear.

Now the red lines trace out the heads path so stand in a gap to avoid him and when he eject 2 beach balls grab on and throw it at the head.

When the head hits the floor hit it as fast as you can.

Repeast twice more and the mission ends and the cheevo is yours.