Whale Guard (ホエールガード, Hoēru Gādo) is a game exclusive combination block hissatsu technique.
In the game, this is one of Tsunami's default hissatsu. Also, this is a combination hissatsu that requires another player with a large body-type.
The user with larger body lies down as the other user jump on the first one. Then the second user blow into a seashell, calling a whale to block the opponent. The whale swallows up the opponent and blows the ball out of its blowhole.