How to Play
The organizer prepares prizes and benefits for 1st, 2nd, 3rd place, etc.
The organizer operates the bingo lottery machine using a computer, tablet PC, smartphone, etc. The displayed numbers are read aloud. It would be even better to project the lottery results onto a large monitor so everyone can see them.
Participants operate their bingo cards. Each person's smartphone would be ideal. Tap the announced numbers, and if 5 squares in a row are aligned vertically, horizontally, or diagonally, it's bingo. The person who aligns them first wins. In case of a tie, you can decide with rock-paper-scissors or prepare more benefits in advance.