|Grab a ball from the powder bath|
|Fail to find a ball before time is up|
|There are less balls than contestants|
The starting game version of Knock Knock. Here there is a row of ten walls - each with eight doors in it. Behind the tenth wall is a long bath of powder.
All the contestants at once run full-speed at the doors. If they run into a paper door they'll burst through and continue onto the next wall; but if they choose a wrong door they'll bounce off again. By choosing a wrong door the contestant's aren't out - they can continue trying doors until they make it though, or just go through a door that has already been opened.
Behind some of the paper doors are nets. If the contestants run through these they'll get trapped and will have to go back out and use another.
Also behind some of the correct doors are pools of water. After breaking through, the contestants will end up falling in and getting slowed down. The Emerald Guards may be lurking behind some walls, to slow contestants down and push them back into the water pools, too.
After making it through all ten walls the contestants will reach the bath of powder. Buried in the powder are lots of balls. The contestants have to grab a ball for themselves. There aren't enough for everyone though, so the contestants need to make their way to the end as quickly as they can to make sure they get a ball.
times; in episodes:
89-98, 102, 107, 108, 110, 111, 114
In this couples' version, only the men play. The women wait at the end with a pink half of a heart each. In the bath of powder are lots of blue half-hearts. The men have to grab a piece each and then fit it together with their partner's piece.
Between them, the couples have to have made a full heart when the whistle blows to win.
Put a Lid On It
In this family version, the walls are divided in two - with four doors on each side. The parents run down one side and the kids run down the other.
Hidden in the powder at the end are bowls and lids. The parents must find a bowl and the kids must find a lid, and put them together to clear the game.
|108 & 110||
The Right Ball
There are two different colous of balls hidden in the bath of powder. Men must pick up a green ball and woman must grab a pink ball.
BGM: "Parade March II" - Kagemusha
|•||The contestants cover a distance of 100 metres from the start to the goal.|