Overview
Knock Out is a family tabletop game for two or more players published by the Milton Bradley Company in 1991.
Gameplay
The players set up a wall of plastic bricks of various colors, with a special large "Knockout" brick embedded in the center of the wall. 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. If the player knocks more than one brick out of the wall, but the special "Knockout" brick remains in place, the brick that the player was attempting to remove is set on top of the wall, and the other downed bricks are removed from the game. If, however, the special "Knockout" brick is dislodged and hits the table, the offending player is eliminated, the remaining players rebuild the wall, and another round is played. This continues until only one player is left.
Each game takes about 15-20 minutes to play. The jackhammer, known in the game as the "Rammer Hammer", uses two AA batteries.
Reception
In 1992, FamilyFun declared Knock Out one of the best new games for children aged 8–10.
From Wikipedia (CC BY-SA 4.0).