To play this youth ministry game you don’t need a four square and you do not need to be outside. Grab some painters tape and map out a larger four square area on the floor. Try to make it about 2-3 times as big as a regular four square and you can make it a rectangle shape (like a gym) if you need to. Doing so will actually make the game a little more interesting.
The game is played just like 4-square except with teams. Each area should have room to allow about 3-4 people to comfortably move around. Number the four squares in order and make teams. You need at least four teams. If you have more than four teams have the extras line up outside of square number four.
Square number one will serve the ball by bouncing it on their side and slapping it to another square. Whatever square it lands in has to hit it into another square before it bounces a second time. When someone misses or hit the ball out of bounds, they go to square four and everyone else moves up towards square one. (square three moves to two, two moves to three, etc.)
You can make up your own rules as things comes up such as can teams hit it twice, can you play off the wall, etc.
Ask any questions in the comments section below!