Press the green flag to start the board, press space or click/tap the logo to stop the board. Press 1 or 2 to switch the board to round 1/2, or press the white button on the side to switch. If being played by one person, I would suggest playing the Single Player version here: https://scratch.mit.edu/projects/402191724/ For a game by the actual rules, this board will fit your needs perfectly.
WATCH OUT FOR THE DEVIL, HE WILL MAKE YOU LOSE ALL YOUR CASH