This only works if you have a room without windows. Get a strobe light (if you have a small room, it doesn’t have to be a large light). Set up the light so that most / all of the room can be lit by the strobe. With the room lights on, get the game ready (whether dodgeball or tag). Then turn off the lights, turn on the strobe, and start the game.
We have requests for this game every Wednesday and Sunday. The kids love it! Again, it works best if you have a room that has no windows (like a basement room).