(オリジナル) This could work in Multiplayer Putting Pairs: each time a player puts a pair of coins they pay 2 coins, and the winner receives the coins put by both players.
(オリジナル) If the player has only 1 coin at their turn, they put 1 coin instead of a pair. And if they have 0 coins at their turn, they automatically lose.
(オリジナル) Another way it could work: If you win a multiplayer game, then you get 50 coins, If you neither win or lose, you get 10 coins. If you lose, you get 0 coins.
(オリジナル) The problem with giving away multiplayer game coins like that is that it would cause inflation which increases power up prices, and/or the taxes would have to increase, reducing the amount of coins earned in single player games.