This is an active game where everyone takes part, which is played until everyone is caught.
First you select someone or several to be the catcher ‘it’.
The other people are free to run anywhere in the room, but if tagged [touched] they freeze with legs apart. Those who haven’t been tagged can free the ones who are frozen by passing between their legs [or under an outstretched arm].
In the event that the catcher tags both the frozen person and the one setting them free at the same time they are both caught.
Tips: If the catcher starts in a corner of the room it will be easier to defend the ones already caught. If the ones who are caught stand in lines several people can be freed at the same time.