Play Coin River to its fullest, while trying to trap coins overhead,
that’s directly above a light during ending sequence.
Coins fall straight into the play field without triggering lights.
Lights get triggered during the said sequence. When the coin triggers the last light to be lit, it can “trigger” the bonus mode; the bonus mode isn’t played. All lights get reset soon after, rendering the player a missed bonus mode opportunity.
Try to trap a coin right on the letter I, so it’s right above the !.