Choose your wager between 25¢ and $25 by choosing coin size and number of coins -- note that since you'll want to be playing five coins in order to potentially cash in on the max jackpot in the Rival game, the minimum is realistically 5¢ coins times five or 25¢.
After that, it's just like video poker. The player gets five cards and he/she may choose to discard any number of these and draw the appropriate number of cards to complete a five-card poker hand. With all 2s wild plus a joker added, the lowest paying hand is three of a kind.
And if you think this one's a mindbender, give a Deuces & Joker multihand video poker game a go 'round or two.