Knock Out is a family tabletop game for two or more players published by the Milton Bradley Company in 1991.

On their turn, the active player rolls a color-coded die and then must remove a brick of the corresponding color from the wall with a small battery-powered "jackhammer".

If the player is successful, the brick is placed on top of the wall, and play continues.

He also noted that "Like all stacking games where you begin with a built tower, you will spend close to as much time building the wall as you do playing a round."

He warned potential buyers that "if you have never liked stacking games like Jenga, Knock Out is not going to be for you.