Test your budgeting skills and play along with your Cash Register game. To earn a high score in the game, you will need to buy every item that. Cash Out is outstanding way for students to practice making change in a real- world type setting. Now, play the game with a timer, or, without a timer and you can turn off the music. Use Timer? SEE RESULTS Online Activities for this Game. Online cash register is a web-based point of sale software that allows you to transact sales from different POS terminals. It also allows you to.